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Investors' Exchange LLC 1 646 343 2000 4 World Trade Center, 44'" Floor 1 888 481 9706 New York, New York 10007 www rexlraoing com Uj1• Pro , Le4jinq July 27, 2017 U.S. Securities and Exchange Commission Jeanette Marshall Division of Trading and Markets 100 F St., NE Washington, DC 02549-7010 L01 7 t V1I<< r l;~rl DG rn .112 LO Re: Investors' Exchange LLC Amendment No. 14 to Form 1 Application for Registration as a National Securities Exchange Pursuant to Section 6 of the Securities Exchange Act of 1934 Dear Ms. Marshall: We previously submitted Amendment No. 14 to our Form 1 application on June 28, 2017 and July 24, 2017. We hereby withdraw in their entirety: (1) the submission of Addenda D-1, D-2, and D-3 submitted on June 28, 2017, (2) the submission of Addendum D-1 submitted on July 24, 2017, and (3) the requests for confidential treatment thereof. In their place, please accept the enclosed filing, which contains the following addenda: Exhibit D Addendum D-1 Unaudited financial statements of IEX Group, Inc. for the fiscal year ending 12/31/2016 Addendum D-2 Audited financial statements of IEX Services LLC for the fiscal year ending 12/31/2016 Addendum D-3 Unaudited financial statements of IEX Ventures LLC for the fiscal year ending 12/31/2016 Please feel free to contact me at (646) 343-2040 with any questions. Thank you. Regards, Sophia Lee r General Counsel Enclosures ' cc: Marlene Olsen, Division of Trading and Markets Richard Holley III, Division of Trading and Markets Michou Nguyen, Division of Trading and Markets c..a oA o

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Page 1: New York, New York 10007 www rexlraoing com Pro,Le4jinq ... · t L017 V1I

Investors' Exchange LLC 1 646 343 20004 World Trade Center, 44'" Floor 1 888 481 9706

New York, New York 10007 www rexlraoing com

Uj1• Pro,Le4jinq

July 27, 2017

U.S. Securities and Exchange CommissionJeanette Marshall

Division of Trading and Markets

100 F St., NE

Washington, DC 02549-7010

L01 7t

V1I<< r l;~rl DG rn.112 LO

Re: Investors' Exchange LLC — Amendment No. 14 to Form 1 Application for

Registration as a National Securities Exchange Pursuantto Section 6 of the Securities Exchange Act of 1934

Dear Ms. Marshall:

We previously submitted Amendment No. 14 to our Form 1 application on June 28, 2017 and July24, 2017. We hereby withdraw in their entirety: (1) the submission of Addenda D-1, D-2, and D-3submitted on June 28, 2017, (2) the submission of Addendum D-1 submitted on July 24, 2017, and (3) therequests for confidential treatment thereof. In their place, please accept the enclosed filing, whichcontains the following addenda:

Exhibit D

Addendum D-1 Unaudited financial statements of IEX Group, Inc. for the fiscal year ending

12/31/2016Addendum D-2 Audited financial statements of IEX Services LLC for the fiscal year ending

12/31/2016Addendum D-3 Unaudited financial statements of IEX Ventures LLC for the fiscal year

ending 12/31/2016

Please feel free to contact me at (646) 343-2040 with any questions. Thank you.

Regards,

Sophia Leer

General Counsel

Enclosures '

cc: Marlene Olsen, Division of Trading and Markets

Richard Holley III, Division of Trading and Markets

Michou Nguyen, Division of Trading and Marketsc..aoA

o

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Investors' Exchange LLC

Date of filing: June 28, 2017

Date as of which the information is accurate: June 28, 2017

Exhibit D

For each subsidiary or affiliate of the exchange, provide unconsolidated financial statements for the

latest fiscal year. Such financial statements shall consist, at a minimum, of a balance sheet and an

income statement with such footnotes and other disclosures as are necessary to avoid rendering the

financial statements misleading. If any affiliate or subsidiary is required by another Commission rule

to submit annual financial statements, a statement to that effect, with a citation to the other

Commission rule, may be provided in lieu of the financial statements required here.

Attached as Addendum D-1 are the unaudited financial statements of IEX Group, Inc. for the fiscal year

ending 12/31/2016.

Attached as Addendum D-2 are the audited financial statements of IEX Services LLC for the fiscal year

ending 12/31/2016.

Attached as Addendum D-3 are the unaudited financial statements of IEX Ventures LLC for the fiscal year

ending 12/31/2016.

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Addendum D-1Unaudited financial statements of IEX Group, Inc.

for the fiscal year ending 12/31/2016

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IEX GROUP, INC.

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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IEX GROUP, INC.

Table of Contents

Unaudited Statement of Financial Condition as at December 31, 2016

Unaudited Statement of Income for the Year Ended December 31, 2016

Unaudited Statement of Stockholders' Equity for the Year Ended December 31, 2016

Unaudited Statement of Cash Flows for the Year Ended December 31, 2016

Notes to Financial Statements

Page

5-12

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IEX Group, Inc.

Unaudited Statement of Financial Condition

December 31, 2016

ASSETS

Cash and cash equivalents

Intercompany receivables

Other receivables

Prepaid expenses

Restricted cash

Marketable securities, at fair value

Property and equipment, net ofaccumulated depreciation of $4,041,003 at

December 31, 2016

Software development costs, net of accumulated amortization of $6,964,498 atDecember 31.2016

Loan receivable

Investments. at cost

Deferred tax asset

Security deposits

Total assets

LIABILITIES AND EQUITY

Liabilities:

Accounts payable

Taxes payable

Accrued expenses and other liabilities

Total liabilities

Stockholders' Equity:

Preferred stock - $0.01 par value, 5,020,882 shares authorized at December 31, 2016

Convertible Series A-1 - 375,000 shares issued and outstanding at December 31,

2016

Convertible Series B-1 - 2,440.000 shares issued and outstanding at December

31, 2016

Convertible Series C- 2.205,882 shares issued and outstanding at December 3l,

2016

Common stock - $0.01 par value, 10,100,000 shares authorized, 3,140,379 shares

issued and outstanding as of December 31, 2016

Treasury stock. 80,708 shares as of December 31. 2016

Additional paid-in capital

Promissory notes receivable, related party

Accumulated surplus/(deficit)

Total Stockholders' Equity

Total liabilities and stockholders' equity

See notes to unaudited financial statements

25,757,710

2.350.428

104,750

1,860,669

351,673

23,056.513

4,528,194

5,922.883

443,103

7,021,201

3,272,756

685,115

$ 75,354,995

143,175

309,857

2,859,404

3,312,436

3.750

24,400

22.059

31,404

(3.149,472)

113,608,972

(2.055,030)

(36,443,524)

72,042.559

$ 75,354,995

1

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IEX Group, Inc.Unaudited Statement of Income

For the Year Ended December 31, 2016

Revenues:

SW License Revenue

Other

Total revenues

Total cost of revenues

Total revenues, less cost of revenues

Operating expenses:

Employee compensation and benefits

Technology and communications

Depreciation and amortization

Professional fees

Regulatory fees

Rent and office

hisurance

Other

Total expenses

Income before income taxes

Income tax benefit (expense)Net income

See notes to unaudited financial statements

$ 2,130,916

683,499

2,814,415

2,814,415

9,412,971

1,234,179

5,189,473

1,488,660

126,164

435,988

304,454

680,295

18,872,184

(16,057,769)

2,794,795

$ (13,262,974)

K

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O

A

y

hC\

n

o

<f h

M

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IEX Group, Inc.

Unaudited Statement of Cash Flows

For the Year Ended December 31, 2016

Cash flows from operating activities:

Net income

Adjustments to reconcile net income to net cash provided by operating activities

Depreciation and amortization

Stock based compensation

Deferred taxes

Interest income

Changes in operating assets and liabilities:

Intercompany receivables

Other receivables

Prepaid expenses

Subordinated Loan

Other assets

Accounts payable

Taxies payable

Accrued expenses and other liabilities

Net cash prodded by operating activities

Cash flows from investing activities:

Purchase of property and equipment

Software capitalization

Purchase of marketable securities

Sale of marketable securities

Issuance of loan receivableInvestments in otherentities

Net cash used in investing actiNities

Cash flows from financing activities:

Proceeds from exercise of stock options

Treasury stock

Net cash used in financing activities

Net increase (decrease) in cash and cash equivalents

Cash andcash equivalents at beginning of periodCash and cash equivalents at end of period

Supplemental disclosure of non-cash financing and investing activities:

Share-based compensation to software developers subject to capitalization

See notes to unaudited financial statements

$ (13,262,974)

5,189,473

2,737,553

(3,272,756)

(25,400)

1,020,312

(67,988)

(186,362)

14,494,555

396,073

59,197

77,670

1,069,608

8,228,96[

(1,060,097)

(3,263,266)

(23,701,699)

20,495,000

(443,103)(4,601,001)

(12,574,166)

938,412

(2,273,290)

(1,334,878)

(5,680,083)

31,437,793

$ 25,757,710

$ 1,251,654

4

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

1. Organization and Nature of Business

IEX Group, Inc. (the "Company") was formed under the laws of the State of Delaware for the purpose of developingand operating an Alternative Trading System ("ATS") through its wholly-owned subsidiary, IEX Services LLC("Services"). Services is a broker-dealer registered with the Securities and Exchange Commission (the "SEC") andis a member of various exchanges and the Financial Industry Regulatory Authority ("FINRA").

In addition to Services, the Company is 100% owner of two additional subsidiaries, Investors' Exchange LLC("Exchange") (formed in May 2014 and started business activities in August 2016) and IEX Ventures LLC("Ventures") (formed in June 2015).

During the year, Services operated an ATS which provided execution services for its broker-dealer subscribers.Services also offered order routing services to other venues. The ATS ceased operations on September 1, 2016 withthe advent of its affiliate, Exchange. Services serves solely as the routing facility for Exchange as at September 2,2016.

Exchange is a financial technology company that develops and operates electronic markets for the trading of listedequity securities in the United States (U.S.) Exchange was approved by the SEC as a national stock exchange on June17, 2016 and began business operations on August 19, 2016.

2. Significant Accounting Policies

Basis of Presentation

The unaudited financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of the unaudited financial statements in conformity with U.S. GAAP requires management to makeestimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assetsand liabilities at the date of the unaudited financial statements and the reported amounts of revenue and expensesduring the reporting period. Actual results could differ materially from those estimates.

Restricted Cash

The Company has a deposit outstanding as of December 31, 2016, of approximately $350,000 with a financialinstitution that is used as collateral and security for the Company's corporate commercial card program.

Receivables

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA"). Other receivables represent amounts owed from third party vendors.

Marketable Securities

The Company's portfolio of marketable securities consists of corporate and other debt securities and is presented onthe Unaudited Statement of Financial Condition at fair value at the end of each reporting period. Gains and lossesresulting from the change in fair value of these securities are recognized in the Unaudited Statement of Income inOther revenues.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricing an asset or liability.The hierarchy for inputs used in measuring fair value is as follows:

Level 1 Inputs—quoted prices in active markets for identical assets or liabilitiesLevel 2 Inputs—observable inputs, other than quoted prices in active markets for identical assets andliabilitiesLevel 3 Inputs—unobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In suchcases, the level within which the fair value measurement is categorized is based on the lowest level input that issignificant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financial instruments have bid and askprices that can be observed in the marketplace. For financial instruments whose inputs are based on bid-ask prices,the financial instrument is valued at the point within the bid-ask range that meets our best estimate of fair value. TheCompany uses prices and inputs that are current as of the measurement date. For financial instruments that do nothave readily determinable fair values using quoted market prices, the determination of fair value is based uponconsideration of available information, including types of financial instruments, current financial information,restrictions on dispositions, fair values of underlying financial instruments and quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and other techniques. Adjustments tovaluations derived from valuation models may be made when, in management's judgment, features of the financialinstrument such as its complexity, the market in which the financial instrument is traded and risk uncertainties aboutmarket conditions require that an adjustment be made to the value derived from the models. Adjustments from theprice derived from a valuation model reflect management's judgment that other participants in the market for thefinancial instrument being measured at fair value would also consider in valuing that same financial instrument. Tothe extent that valuation is based on models or inputs that are.less observable or unobservable in the market, thedetermination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors, including, for example, thetype of financial instrument and market conditions. As the observability of prices and inputs may change for afinancial instrument from period to period, this condition may cause a transfer of an instrument among the fair valuehierarchy levels. Transfers among the levels are recognized at the beginning of each period. The degree of judgmentexercised in determining fair value is greatest for instruments categorized in Level 3. The valuation process involvedfor Level 3 measurements is completed at least annually. The Company will generally employ multiple valuation

methodologies when determining the fair value of investments categorized as Level 3, such as market comparableanalysis and discounted cash flow analysis. The market comparable analysis considers key financial inputs, recentpublic and private transactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodology include the discountrate for the investment and assumed inputs used to calculate terminal values, such as price/earnings multiples. Uponcompletion of the valuations conducted using these methodologies, a weighting is ascribed to each method and theultimate fair value recorded for a particular investment will generally be within a range suggested by themethodologies. When determining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discounted cash flow analysisand the expected holding period.

Property and Equipment, net

Property and equipment primarily represents servers, network switches and firewalls and is carried at cost lessaccumulated depreciation. Depreciation is recognized on a straight-line basis over the estimated useful lives of theassets, which is generally three years. See note 6 for further discussion.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principalversus Agent Considerations, The purpose of ASU 2016-08 is to clarify the implementation of guidance on principalversus agent considerations in ASU 2014-09, which is not yet effective. The amendments in ASU No. 2016-08 areeffective for annual reporting periods beginning after December 15, 2017, and interim periods within annual periodsbeginning after December 15, 2018. The Company is currently assessing the impact of ASU 2016-08 on its financialstatements and related disclosures.

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718), Improvementsto Employee Share-Based Payment Accounting. Under ASU 2016-09, companies will no longer record excess taxbenefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess taxbenefits and tax deficiencies as income tax expense or benefit in the income statement, and the APIC pools will beeliminated. In addition, ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companiescan recognize them. ASU 2016-09 also requires companies to present excess tax benefits as an operating activity onthe statement of cash flows rather than as a financing activity. Furthermore, ASU 2016-09 will increase the amountan employer can withhold to cover income taxes on awards and still qualify for equity classification. ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory incometax withholding obligation as a financing activity on the statement of cash flows. Under current U.S. GAAP, it wasnot specified how these cash flows should be classified. In addition, companies will now have to elect whether toaccount for forfeitures on share-based payments by (1) recognizing forfeitures of awards as they occur or (2)estimating the number of awards expected to be forfeited and adjusting the estimate through current earnings ascurrently required. The amendments of this ASU are effective for annual periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018. Early adoption is permitted but all ofthe guidance must be adopted in the same period. The Company is currently assessing the impact that ASU 2016-09will have on its financial statements.

In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): IdentifyingPerformance Obligations and Licensing. The purpose of ASU 2016-10 is to clarify the guidance on identifyingperformance obligations and the implementation guidance on licensing in ASU 2014-09, which is not yet effective.The amendments in ASU No. 2016-08 are effective for annual reporting periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018. The Company is currently assessingthe impact of ASU 2016-08 on its financial statements and related disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification of Certain Cash Receiptsand Cash Payments, which addresses eight specific cash flow issues with the objective of reducing the existingdiversity in practice in how certain cash receipts and cash payments are presented and classified in the statement ofcash flows. The standard is effective for fiscal years beginning after December 15, 2018, and interim periods withinfiscal years beginning after December 15, 2019. Early adoption is permitted, including adoption in an interim period.The Company is currently in the process of evaluating the impact of this new pronouncement on its statements of cashflows.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash. ThisASU requires that cash segregated for regulatory and other purposes be included in cash and cash equivalents in thestatements of cash flows and is required to be applied retrospectively. The ASU is effective for fiscal years beginningafter December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoptionis permitted, on a retrospective basis, including adoption in an interim period. Adoption will affect cash flows fromoperating activities on the Company's Unaudited Statements of Cash Flows to the extent that the Company holdsrestricted cash at the time of adoption, but will not have any effect on the Company's financial condition or results ofoperations.

In January 2017, the FASB issued ASU 2017-01, Business Combinations ('Topic 805) - Clarifying the Definition ofa Business. The ASU amends the defmition of a business and provides a threshold which must be considered todetermine whether a transaction is an asset acquisition or a business combination. The ASU is effective for annualperiods beginning after December 15, 2018, and interim periods within annual periods beginning after December 15,2019. Early adoption is permitted. Because ASU 2017-01 applies on a prospective basis to business combinationsand deconsolidations that occur after adoption of its provisions, adoption is not expected to have an impact on theCompany's financial statements.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

3. Concentration of Credit Risk

Cash and Cash Equivalents

The Company defines cash and cash equivalents as cash on hand, demand deposits with financial institutions and shortterm liquid investments with an initial maturity of less than 3 months. Cash balances in individual banks may exceedthe federally insured limit of $250,000 by the Federal Deposit Insurance Corporation (the "FDIC"). At December 31,2016, the Company had approximately $23.5 million, in excess of the insured limit.

As of December 31, 2016, cash equivalents of approximately $2.2 million consist of money market funds.

Credit Risk

The Company's receivables are limited mainly to intercompany receivables from its subsidiaries and any amountsowed from third party vendors.

4. Receivables

As of December 31, 2016, the Company had amounts receivable from Subsidiaries and Others as follows (dollars inthousands):

Intercompany $ 2,350

Other 105

$ 2,455

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA").

Other receivables consist mainly of amounts owed from third party vendors.

The Loan receivable is with a third party borrower, interest on the loan accrues at a rate equal to prime + 2% and ispayable on the last day of each year following the issuance of the loan or upon repayment or prepayment of a principalamount.

5. Fair Value of Financial Instruments

A summary of our financial assets that are measured at fair value on a recurring basis by level within the fair valuehierarchy is as follows (dollars in thousands):

Fair Value Measurement as of December 31, 2016

Leven Level Level Total

Assets

Marketable securities, at fair valuer

US corporate securities $ $ 9,573

US government t securities _ _... .8.259. -

Other debt securities 5,224

Total $ 8,259 $ 14,798

$ - $ 9,573

- 8,259

5,224

$ - $ 23,057

The fair values of marketable securities are determined using quoted market prices from daily exchange traded marketsbased on the closing price as of December 31, 2016 are classified as Level 1 and 2 of the fair value hierarchy.

10

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

6. Property and Equipment

Property and equipment consists of (dollars in thousands):

12/31/2016

Computers and equipment $ 6,494

Furniture and figures 704

Leasehold improvements 1,371

Total property and equipment 8,569

Accumulated depreciation (4,041)

Total property and equipment, net $ 4,528

Depreciation expense of property and equipment amounted to approximately $2.0 million for the year endedDecember 31, 2016.

7. Software Development Costs

Software development costs consists of (dollars in thousands):

12/31/2016

Software development costs $ 12,887

Less: Accumulated amortization (6,964)

$ 5,923

During 2016, software development costs amounting to approximately $4.5 million were capitalized and amortizationexpense was approximately $3.2 million.

Estimated future annual amortization expense is as follows (dollars in thousands):

Year Fnding December 31

2017 3,157

2018 2,094

2019 672

8. Income Taxes

FASB ASC 740 requires that a valuation allowance be established when it is more likely than not that all or a portionof a deferred tax asset will not be realized. In assessing the realizability of the deferred tax assets, the Companyconsidered the scheduled expiration of certain net operating loss carryforwards, projected future taxable income andcertain distinct tax planning strategies. Based on the assessment performed, the Company concluded that it is likelythat these deferred tax assets will be utilized. During the year ended December 31, 2016, the Company released thevaluation allowance against the deferred tax assets of approximately $3.3 million.

The major components of the Company's deferred tax assets (liabilities) are as follows (dollars in thousands):

Noncurrent deferred taxassets (liabilities)Net operating loss 1,487

Software amortization (2,603)

Stock-based compensation expense 3,292

Research and development and AMT credits 1,851

Other (754)

3,273

Valuation allowance -Total S 3,273

11

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

The income tax benefit as of December 31, 2016, of approximately $2.8 million includes the effect of the release ofthe valuation allowance and is net of the current provision for income taxes of approximately $460,000, consisting of$150,000 for federal income taxes and $310,000 for state and local income taxes.

At December 31, 2016, the Company had federal net operating loss carryforwards of approximately $3.3 millionwhich will expire from 2033 through 2035. The NOL is subject to a limitation in the amount of approximately $1.9million in addition to an annual limitation of approximately $5.2 million under Internal Revenue Code §382. Similarlydetermined limitations under Internal Revenue Code §383 apply to certain tax credit carry forwards.

The Company is also subject to certain State and local taxes based on capital which are included in Other expenses.

The jurisdictions open for audit are Federal, New York State and New York City from 2013 to date.

Income tax expense differs from the tax that would result from applying federal statutory tax rates primarily due topermanent differences, tax credits generated from research and development activities and the release of the valuationallowance related to deferred tax assets.

9. 401(k) Plan

The Company has a 401(k) plan with a third-party provider. Employer contributions are discretionary. During theyear ended December 31, 2016, the Company did not make any contributions.

10. Commitments, Contingencies and Guarantees

Leases

Rent expense for the year ended December 31, 2016 was approximately $892,000. In addition, the Company iscurrently in year 2 of a 7-year lease agreement for its office space at 4 World Trade Center.

At December 31, 2016, the future minimum lease payments are as follows (dollars in thousands):

Year Ending December 31

2017 925

2018 925

2019 925

2020 925

Thereafter 2,002

As of December 31, 2016, the Company does not have any existing leases for computer equipment. Equipment leaseexpenses for the year ended December 31, 2016 was approximately $1.1 million.

11. Subsequent Events

The Company has evaluated subsequent events through April 25, 2017, the date the financial statements were availableto be issued, and has determined that there are no subsequent events requiring disclosures or adjustments to thefinancial statements, except for those noted below.

The Company amended its 401(k) plan to allow for the matching of employee contributions effective February 15,2017. The Company has agreed to match 5% of an employee's semi-monthly pay up to an annual maximum amountof $5,000. There are currently 58 employees participating in the plan.

12

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Addendum D-2Audited financial statements of IEX Services LLC

for the fiscal year ending 12/31/2016

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IEX SERVICES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

SEC ID Number — 8-69280

FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULESAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

ANDREPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

This report is deemed CONFIDENTIAL in accordance with Rule 17a-5(e)(3) under the Securities Exchange Actof 1934. A Statement of Financial Condition, bound separately, has been filed with the Securities and Exchange

Commission simultaneously herewith as a Public Document.

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UNITEDSTATESSECURITIESAND EXCHANGE COMMISSION OMBNamber: 3i35_

Washington, D.C. 20549 Expires: May31,2017Estimated average burden

r ~, J'~~'w3~~ 1•

ANNUAL AUDITED REPOOG hours per response ..............12.00(

FORM X 17A-5 Mail Processing r----Section

SEC FILE NUMBER

PART IIIJUL 3 1 201

[ 8-69280

FACING PAGE

Information Required of Brokers and Dealers PuM~'z HMNibn 17 of the

Securities Exchange Act of 1934 and Rule 17a-5Mhereunder

REPORT FOR THE PERIOD BEGINNING 01101/16 AND ENDING 12/31/16MM/DD/YY MM/DD/YY

A. REGISTRANT IDENTIFICATION

NAME OF BROKER-DEALER: IEX Services LLC OFFICIALUTSEONLY

ADDRESS OF PRINCIPAL PLACE OF BUSINESS: (Do not use P.O. Boa No.) FIRMI.D.NO.

4 World Trade Center, 4411 Floor(No, and Street)

New YoTI-r- NY _ 10007(City) (State) (Zip Code)

NAME AND TELEPHONE NUMBER OF PERSON TO CONTACT IN REGARD TO THIS REPORT

,I.Q.hn_S.ChML3ll_ —_ _ __ _—_.___k64Q_34:1-2914_(Area Code— Telephone Number)

B. ACCOUNTANT IDENTIFICATION

INDEPENDENT PUBLIC ACCOUNTANT whose opinion is contained in this Report*

Deloitte & Touche LLP

(Name— if individual, state last, first, middle naine)

30 Rockefeller Center New York NY 10112(Address) (City) (State) (Zip Code)

CHECK ONE:Q Certified Public Accountant

❑ Public Accountant

❑ Accountant not resident in United States or any of its possessions.

IC, arms. or• exe» rp-ton Toni file reduurernent that the annual report be covereil ky Me opnion (y pub ic accnunian,

must be supported by a statement of facts and circumstances relied on as the basis for the exemption. See Section 240.17a-5(e)(2)Potential persons who are to respond to the collection ofinformation contained in this form are not required to respond

SEC 1410 (06-02) unless th eform displays a currently valid OMB control number.

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AFFIRMATION

I, John Schwall, affirm that, to the best of my knowledge and belief the accompanying financial statements

and supplemental schedules pertaining to IEX Services LLC, as of and for the year ended December 31,

2016, are true and correct. I further affirm that neither the Company nor any partner, proprietor, principal

officer or director has any proprietary interest in any account classified solely as that of a customer.

6M &'` v 1

Notary Public

BENJAMIN B. AISENNotary Public. State of New York

No, 02AI6247140Ouallfied in New York County

Commission Expires Aug. 22, 2019

Signature

Chief Operating OfficerTitle

Qedt"Y we- V0/2

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I.EX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Table of Contents

This report ** contains (check all applicable boxes): Page

X I Report of Independent Registered Public Accounting Firm. I

X a Facing Page.X b Statement of Financial Condition. 2

X (e) Statement of Income. 3X (d) Statement of Cash Flows. 4X.1 e) Statement of Changes in Member's Equity. 5X Statement of Changes in Liabilities Subordinated to Claims of Creditors. 6

X Notes to Financial Statements. 7-14

X (g) Computation of Net Capital for Brokers and Dealers Pursuant to Rule 150-1 under theSecurities Exchange Act of 1934.

15

X (h) Computation for Determination of Reserve Requirements for Brokers and DealersPursuant to Rule 15c3-3 under the Securities Exchange Act of 1934.

16

X (i) Information Relating to the Possession or Control Requirements for Brokers and DealersPursuant to Rule 15c3-3 under the Securities Exchange Act of 1934.

16

X (j) A Reconciliation, including Appropriate Explanations, of the Computation of Net Capitalunder Rule 156-1 and the Computation for Determination of the Reserve Requirementsunder Rule 15c3-3 included in item

15

(k) A Reconciliation Between the Audited and Unaudited Statements of Financial Conditionwith Respect to Methods of Consolidation (not applicable).

X I An Oath or Affirmation.X (m) A Report Describing the Broker-Dealer's Compliance with the Exemption Provisions

of Section (k) of SEC Rule 15c3-3 (the "Exemption Report") and Report of IndependentRegistered Public Accounting Firm Thereon filed separately).

**For conditions of confidential treatment of certain portions of this filing, see section 240.17a-5(e)(3).

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Deloitte.Deloitte & Touche LLP30 Rockefeller PlazaNew York, NY 10112-0015

Tel: +1212 489 1600Fax: +1212 489 1687

www.deloifte.com

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Member of IEX Services LLC:

We have audited the accompanying statement of financial condition of IEX Services LLC (the"Company") as of December 31, 2016, and the related statements of income, cash flows, changes inmember's equity, and changes in liabilities subordinated to claims of general creditors for the year thenended that you are filing pursuant to Rule 17a-5 under the Securities Exchange Act of 1934. Thesefinancial statements are the responsibility of the Company's management. Our responsibility is to expressan opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting OversightBoard (United States). Those standards require that we plan and perform the audit to obtain reasonableassurance about whether the financial statements are free of material misstatement. The Company is notrequired to have, nor were we engaged to perform, an audit of its internal control over financial reporting,Our audit included consideration of internal control over financial reporting as a basis for designing auditprocedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion onthe effectiveness of the Company's internal control over financial reporting. Accordingly, we express nosuch opinion. An audit also includes examining, on a test basis, evidence supporting the amounts anddisclosures in the financial statements, assessing the accounting principles used and significant estimatesmade by management, as well as evaluating the overall financial statement presentation. We believe thatour audit provides a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position ofIEX Services LLC as of December 31, 2016, and the results of its operations and its cash flows for theyear then ended December 31, 2016 in conformity with accounting principles generally accepted in theUnited States of America.

The supplemental schedules g, h, and i listed in the accompanying table of contents have been subjectedto audit procedures performed in conjunction with the audit of the Company's financial statements. Thesupplemental schedules are the responsibility of the Company's management. Our audit proceduresincluded determining whether the supplemental schedules reconcile to the financial statements or theunderlying accounting and other records, as applicable, and performing procedures to test thecompleteness and accuracy of the information presented in the supplemental schedules. In forming ouropinion on the supplemental schedules, we evaluated whether the supplemental schedules, including theirform and content, are presented in compliance with Rule 17a-5 under the Securities Exchange Act of1934. In our opinion, such schedules are fairly stated, in all material respects, in relation to the financialstatements as a whole.

LLP

February 28, 2017

Member ofDeloitte Touche Tohmatsu Limited

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IEX Services LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Financial Condition

December 31, 2016

Assets

Cash and cash equivalents $ 30,884,302

Receivables fromsubscribeis 224,149

Receivables framclearin timi '~ t.~ y `' 501,940

Receivables fromexchanbes 516,717

Due from affiliate FNOUN-&"'"N' 71- 2,674,850

Deferred tax asset 969,657

Prepaid expenses ,_.r ~ 43,114

TOTAL ASSETS $ 35,814,759

Liabilities and[Wniber's Etpiky

Liabilities:

Payable to parent $ 217,169

Accrued expenses and otlierliabilitiq...."411 3.423,896

TOTAL LIABILITIES 3,(A 1,065

I W10 4 ,

Member's equity:

Mcmter's equity f̀ x ~` 32,173,694TOTAL LIABILITIES AND MEMBER'S EQUITY $ 35,814,759

See notes to financial statements

Confidential 2

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of IncomeFor the Year Ended December 31, 2016

Revenues:

Matched fees 32,23.8,139

Routed fees 17,013,038

Regulatory transaction fees 5,259,944

Related party expense sharing 11,400,971

Other 2,507,422

Total rcvcnues 64,419,514

Cost of revenues:

Routing fees 24,886,133

Section 31 fees 6,267,468

Clearing fees 3,340,421

Other 4377029

Total cost of revenues 34,931,051

Total revenues, less cost of revenues 33,488,463

Operating expenses:

Technology and communications 7,851,089

Employee compensation and benefits 5,634,082

Software licensing fee 856,349

Interest on subordinated debt 430,514

Professional fees 545,074

Regulatory fees 365,421

Rent and office 319,558

Other 621,729

Total operating expenses 16,623,816

Income before income taxes 16,864,647

Provision for income taxes 7,436,739

Net income 9,427,908

See notes to financial statements

Confidential 3

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IEX Services LLC(A Wholly-Owned Subsidiary of 1EX Group, Inc.)

Statement of Cash FlowsFor the Year Ended December 31, 2016

Cash flows from operating activities:

Net income $ 9;427;908

Adjustments to reconcile net income to net cash provided by operating activities

Interest accrued on subordinated borrowings 430,514

[neon, tax prov.ision 7,36,739

Deferred taxasset (531,508)

Changes in operating assets and liabilities:

Receivables fromsubscribers 10,140,952

Receivables -from eleann furni (1,473)

Receivables fromexchanges 693,629

Due from affiliate (2,674,350)

Other receivables 2,722

Piv,paid expenses (1,764)

Payable to parent (2,642,494)

Accrued expenses and other liabilities (481,307)

Net cash prodded by operating activities 21,799,068

~~: .`5;. h?tn ̀v&N..a w•..: ~- •~v~.i.Lsei'i rl:., .._~✓i.-t ~i:. :v.«~< ~:. .'-a'l f.,.. K.c .e ,. ..-.

Cash flows from financing activities:Repayment of liabilities subordinated` to .claiu":oforeditor, (1=1,925,069)

Net crush used by financing activities (14,925,069)

Net increase in cash

Cash at txginiiing of yearCash at end of year

Non-cash financing activities:Income tax payable (See Notes 5 and 6)

See notes to financial statements

6,873,999

24,010,303

S 30,884,302

S 7,436,739

Confidential 4

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc,)

Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member'sF city

Balance at December 31, 2015 $ 14,797,971

Non-cash capital contributions (Sec Note 5) 7,947,815

Net inconie 9,427,90$

Balance at Decerrber31, 2016 $ 32,173,694

See notes to financial statements

Confidential

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Changes in Liabilities Subordinated to Claims of CreditorsFor the Year Ended December 31, 2016

Liabilities subordinated to claims of creditors at December 31 2015 $ 14,494,SS5Additional accrued interest

Repayment of luabilities subordinated to claiuns of creditors

Liabilities subordinated to claims of creditors at December 31, 2016

See notes to financial statements

430,514(14,92,069)

Confidential

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Financial StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Services LLC (the "Company") is a broker-dealer registered with the Securities and ExchangeCommission (the "SEC") and is a member of various exchanges and the Financial IndustryRegulatory Authority ("FINRA"). The Company is a Delaware limited liability company and awholly-owned subsidiary of IEX Group, Inc. ("Parent").

During the year, the Company operated an Alternative Trading System C"ATS") which providedexecution services for its broker-dealer subscribers. The Company also offered order routingservices to other venues. The ATS ceased operations on September 1, 2016 with the advent of itsaffiliate, Investors' Exchange LLC ("Exchange"). The Company serves solely as the routingfacility for the Exchange as of September 2, 2016.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities anddisclosure of contingent assets and liabilities at the date of the financial statements and the reportedamounts of revenue and expenses during the reporting period. Actual results could differmaterially from those estimates.

Revenue Recognition

Through September 1, 2016, the Company's primary business was matching equity shares on itstrading system for its subscribers. Matched fees included shares matched on its trading systemwhereby shares whose price was $1.00/share or greater were assessed a charge of 9 mils per share($0.09 per 100 shares). For shares whose price was less than $1.00 a fee of 0.30% of the totalnotional value of the trade (shares x price) was assessed. Routing fees include fees on ordersrouted to other venues on a cost-plus-1-mil basis ($0.01 per 100 shares). The Company offeredseveral pricing promotions during the year to eligible subscribers. Fees were recorded on a tradedate basis as securities transactions occurred.

Regulatory transaction fees represent Section 31 fees paid to the SEC pursuant to Section 31 ofthe Securities Exchange Act of 1934 by the exchanges. The Company recorded Regulatorytransaction fees as revenues with a corresponding cost of revenue for Section 31 fees remitted tothe Company's clearing firm.

On August 19, 2016, the Company entered into a new Tri-Party Expense Sharing Agreement ("Tri-Party ESA") with the Parent and Exchange to properly allocate the shared expenses incurredamongst the parties (See Note 5). In addition to the monthly fee for use of the routing facilitydescribed in the next paragraph, the Company is also reimbursed by the Exchange for costs

Confidential 7

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incurred on behalf of the Exchange. These reimbursements are presented on a gross basis inRelated party expense sharing with the corresponding expenses presented in the Cost of Revenuesand Operating Expenses on the Company's Statement of Income, as the Company is consideredthe primary obligor.

Other revenues consisted primarily of revenue from trade reporting and other revenues receivedfrom exchanges. Beginning September 2, 2016, the Company also earned $100,000 per monthserving as the routing facility for the Exchange.

All fees are recorded on a trade date basis as securities transactions occur.

Cost of Revenues

The Company incurs routing, Section 31, clearing and other fees directly related to its revenue.

Routing fees and Section 31 fees are described in Revenue Recognition and clearing fees consistof costs to process, clear and settle transactions.

Income Taxes

The Company is included in the income tax returns filed by the Parent, which files as a C-corporation. Income taxes are calculated as if the Company filed on a separate return basis and asa C-corporation. The Company records income tax expense (benefit) using the asset and liabilitymethod. Under this method, deferred tax assets and liabilities are determined based upon thetemporary differences between the financial statement and income tax bases of assets and liabilitiesusing currently enacted tax rates in effect for the year in which the differences are expected toreverse.

The Company recognizes deferred tax assets to the extent that it believes these assets are morelikely than not to be realized. In making such a determination, the Company considers .all availablepositive and negative evidence, including future reversals of existing taxable temporarydifferences, projected future taxable income, tax-planning strategies, and results of recentoperations. A valuation allowance is established to reduce the deferred tax assets to the amountthat is more likely than not to be realized.

The Company follows the provisions of uncertain tax positions as addressed in FinancialAccounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740, IncomeTaxes. The Company did not record a liability for unrecognized tax benefits. The Company hasno tax positions at December 31, 2016 for which the ultimate deductibility is highly certain but forwhich there is uncertainty about the timing of such deductibility. The Company recognizes interestand penalties accrued related to unrecognized tax benefits in interest expense and penalties inoperating expenses. No such interest or penalties were recognized for the year ended December31, 2016, and the Company had no accruals for interest and penalties at December 31, 2016.

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liabilityin an orderly transaction between market participants at the measurement date, or an exitprice. The amounts presented for financial assets and liabilities on the Statement of FinancialCondition are carried at fair value or at amounts that, because of their short-term nature, theCompany believes approximate current fair value.

Confidential 8

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The fair value of the Company's financial instruments is measured based on a three-levelhierarchy:

• Level 1 — quoted prices for identical assets. or liabilities in active markets.

Level 2 — observable inputs, other than quoted prices included in Level 1, for the asset orliability, or prices for similar assets and liabilities.

Level 3 — unobservable inputs supported by little or no market activity and that aresignificant to the fair value of the assets or liabilities.

All financial assets and liabilities are considered Level 2 under the fair value hierarchy, except forcash and cash equivalents which are considered Level 1.

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, Revenue Recognition. The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is that an entity should recognize revenue to depict the transfer of promised goods orservices to customers in an amount that reflects the consideration it expects to receive in exchangefor those goods or services. The standard also requires more detailed disclosures. The standardprovides alternative methods of initial adoption and is effective for annual reporting periodsbeginning after December 15, 2017, and interim periods within annual periods beginning afterDecember 15, 2018. The Company is evaluating this guidance, but does not expect it to materiallyimpact the financial statements of the Company.

In June 2014, the FASB issued ASU 2014-12, Compensation — Stock Compensation (Topic 718),which requires that a performance target that affects vesting and that could be achieved after therequisite service period be treated as a performance condition. ASU 2014-12 was effective forannual reporting periods and interim periods beginning after December 15, 2015. The adoptiondid not have an impact on the financial statements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic606): Principal versus Agent Considerations. The purpose of ASU 2016-08 is to clarify theimplementation of guidance on principal versus agent considerations. The amendments in ASUNo. 2016-08 are effective for annual reporting periods beginning after December 15, 2017, andinterim periods within annual periods beginning after December 15, 2018. The Company iscurrently assessing the impact of ASU 2016-08 on its financial statements and related disclosures.

Confidential 9

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In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic718), Improvements to Employee Share-Based Payment Accounting. Under ASU 2016-09,companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess tax benefits and tax deficiencies as incometax expense or benefit in the income statement, and the APIC pools will be eliminated. In addition,ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companies canrecognize them. ASU 2016-09 also requires companies to present excess tax benefits as anoperating activity on the statement of cash flows rather than as a financing activity. Furthermore,ASU 2016-09 will increase the amount an employer can withhold to cover income taxes on awardsand still qualify for the exception to liability classification for shares used to satisfy the employer'sstatutory income tax withholding obligation. An employer with a statutory income tax withholdingobligation will now be allowed to withhold shares with, a fair value up to the amount of taxes owedusing the maximum statutory tax rate in the employee's applicable jurisdiction(s). ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfyits statutory income tax withholding obligation as a financing activity on the statement of cashflows. Under current U.S. GAAP, it was not specified how these cash flows should be classified.In addition, companies will now have to elect whether to account for forfeitures on share-basedpayments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number ofawards expected to be forfeited and adjusting the estimate when it is likely to change as currentlyrequired. The amendments of this ASU are effective for annual periods beginning after December15, 2017, and interim periods within annual periods beginning after December 15, 2018. Earlyadoption is permitted but all of the guidance must be adopted in the same period. The Company iscurrently assessing the impact that ASU 2016-09 will have on its financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification ofCertain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues withthe objective of reducing the existing diversity in practice in how certain cash receipts and cashpayments are presented and classified in the statement of cash flows. The standard is effective forfiscal years beginning after December 15, 2018, and interim periods within fiscal years beginningafter December 15, 2019. Early adoption is permitted, including adoption in an interim period. TheCompany is currently in the process of evaluating the impact of this new pronouncement on itsstatements of cash flows.

3. Concentration of Credit Risk and Major Subscribers

Cash and Cash Equivalents

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution in excess of FDIClimits of approximately $1.8 million.

Cash equivalents of approximately $28.9 million consist of money market funds.

Confidential 10

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4. Receivables From Subscribers, Clearing Firm and Exchanges

As of December 31, 2016, the Company had amounts receivable from subscribers, clearing firmand exchanges as follows (in thousands):

ReceivablesSubscnbers $ 224Clearing Minn 502Exchanges 517

$ 1,243

Receivables from subscribers consist of all trading fees (matched, routed and regulatorytransaction fees) billed to the Company's subscribers.

Receivables from clearing finn consist of a $500,000 security deposit plus interest, accumulatedat the interest rate as defined in the clearing agreement.

Receivables from exchanges consist of rebates from exchanges.

5. Related Party Transactions

Subordinated Load Agreement

The Company entered into a Subordinated Loan Agreement ("SLA") on September 13, 2013 withthe Parent in order to fund its operations, The SLA was for $13,000,000 with a 5% per annuminterest charge with a three-year tenn, which matured on September 12, 2016. The SubordinatedLoan and related interest accrual were allowable in computing net capital under the SEC's UniformNet Capital Rule and approved by FINRA.

For the year ended December 3 1, 2016, the Company recorded approximately $431,000 in interestexpense associated with the terms and conditions of the SLA.

During 2016 the Company completely repaid the principal plus accrued interest of approximately$14.9 million to the Parent.

Software License and Expense Sharing Agreement

The Company entered into a Software License and Expense Sharing Agreement ("ESA") with theParent on October 1, 2013 to reimburse the Parent on a monthly basis for expenses incurred on theCompany's behalf. Included in the ESA is a quarterly Software License Fee for the use of thetechnology which operates its ATS and is the property of the Parent. This Software License Feewas $325,000 per quarter.

Confidential 11

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For the year ended December 31, 2016, the Company's allocation of expenses, according to theterms and conditions of the ESA, are shown below (in thousands):

Technology and communications $ 5,841`Employee compensation and benefits 5,634Software licensing fee 856Professional fees 307Rcnt and office 320Regulatory fees 26Tax Provision 20Other 606

13;610

A new Tri-Party ESA with the Exchange and the Parent went into effect August 19, 2016 and itreplaced the prior ESA with Parent. The Parent will reimburse the Company for all expensesrelated to the operation and maintenance of the Smart Order Router, including without limitation,personnel expenses, licensing and registration fees, all costs of revenues, all assessments imposedby regulators, banking fees, legal fees, taxes, rent for independent commercial space leases, allexpenses to outside vendors, infrastructure and data center maintenance and software support andmaintenance expenses (collectively, "SOR Expenses"). At December 31, 2016, amounts due tothe Parent relating to the Tri-Party ESA were approximately $217,000, payable within 30 days.

As part of the new Tri-Party ESA, the Company agreed to be reirnbursed on a monthly basis forSOR expenses incurred on behalf of the Exchange. At December 31, 2016, amounts due from theExchange relating to the Tri-Party ESA were approximately $2.7 million, receivable within 30days. Included in the amount due from the Exchange is a monthly Software License Fee for routingservices of $100,000 per month.

For the year ended December 31, 2016, the Company's allocation of expenses to the Exchange,according to the terms and conditions of the ESA, are shown below (in thousands):

Routnig fees $ 8,589.Technology and conununications 1,240SEC Section 31 fees 1,031Clearing fees 489Regulatory fees 42Othcr 10

11 401

Capital Contributions

The provision for income taxes under the separate return method and related payable to the Parenthas been recorded as a non-cash capital contribution since no payment will be made in accordancewith the Tri-Party ESA. During 2016, the Parent made approximately $8.0 million of such non-cash capital contributions which included an increase to the deferred tax asset of approximately$532,000.

Confidential 12

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6. Income Taxes

At December 31, 2016, the Company had a deferred tax asset of approximately $1.0 millionrelating to stock based compensation.

The provision for income taxes of approximately $7.4 million consists of current provision offederal income taxes of approximately $5.1 million and $2.3 million for state and local incometaxes, which is net of a deferred benefit of approximately $532,000 for the year ended December31, 2016.

The federal income tax expense under the separate return method and payable to the Parent hasbeen recorded as a capital contribution since no payment will be made in accordance with the Tri-Party ESA.

The jurisdictions open for audit are Federal, New York State and. New York City from 2013 todate.

Income tax expense (benefit) differs from the tax that would result from applying federal statutorytax rates primarily due to unfavorable permanent book-to-tax differences and the valuationallowance related to deferred tax assets.

7. Share-Based Compensation

The Parent maintains the 2012 Equity Incentive Plan (the "Plan"), which was approved by theParent's Board of Directors on June 27, 2012 and the Parent's Stockholders on June 29, 2012. Theplan permits the grant of incentive stock options, non-statutory stock options, stock appreciationrights, restricted stock awards, restricted stock unit awards and other stock awards to employees,directors and consultants, The Parent issues shares from authorized but unissued or reacquiredCommon Stock. The fair value of RSUs and options is based on the most recent valuationcompleted by the Parent on the date of grant and is recorded as compensation expense.

The Parent allocates stock compensation expense in addition to salary and benefit expenses to theCompany through the ESA and the Tri-Party ESA based upon services provided by the Parent'semployees. During the year ended December 31, 2016, the Company incurred approximately $1.4million in stock compensation expense which is recorded in Employee compensation and benefitson the Statement of Income.

8. Net Capital

The Company is subject to the SEC Uniform Net Capital Rule 150-1, which requires themaintenance of minimum net capital at the greater of 6 2/3% of aggregate indebtedness orminimum net capital of $5,000 at December 31, 2016.

On September 20, 2016, the Company changed its minimum net capital requirement under SECRule 150-1 from $100,000 to $5,000 effective October 1, 2016. Due to its cessation of operatingas an ATS and relinquishing its rights to act as an agent in a Private Placement, the Company hasplaced itself under the classification of "Other Broker Dealer".

Confidential 13

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At December 31, 2016, the Company had net capital of approximately $27.2 million, whichexceeded the minimum requirement of approximately $241,000 by $27.0 million. The Company'sratio of aggregate indebtedness to net capital was 0.13 to 1.

9. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, includingarbitrations, class actions and other litigation, arising in connection with its activities as a broker-dealer. The Company may also be involved, from time to time, in other reviews, investigations,and proceedings (formal and informal) by governmental and self-regulatory agencies regardingthe Company's business. Where available information indicates that it is probable a liability hadbeen incurred at the date of financial statements and the Company can reasonably estimate theamount of that loss, the Company accrues the estimated loss by a charge to income. Managementbelieves that the resolution of any unknown matter will not result in any materially adverse effecton the Company's financial position, results of operations or cash flows.

10. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements wereavailable to be issued, and have determined that there are no subsequent events requiringdisclosures or adjustments to the financial statements other than discussed below.

The Parent granted approximately 130,000 restricted stock units during January 2017 which vestover 4 years. The Company will be allocated stock compensation expense through the Tri-PartyESA based on services provided by the Parent's employees.

Confidential 14

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Schedule G

IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Computation of Net Capital for Brokers and Dealers Pursuant to Rule 156-1 Under the SecuritiesExchange Act of 1934

December 31, 2016

As reportedin (unaudited)

FOCUS Part

11A report Audited

filed on amount as of

January 26, Adjustments December 31,2017 (1) 2016

Net Capital

Total member's equity $ 31,048080 $ 1,125,514 $ 32,173,694

Subordinated liabilities - - _

Total capital and allowable subordinated liabilities $ 31,048,180 $ 1,125,514 $ 32,173,694

Ded uct~b les/charges :

Nonallowable assets:

Receivables frotnsubscnbers 224,149 - 224,149

Receivables fromexchanges 433,869 82,848 516,717

Due from affiliate 2,674,850 - 2,674,850

Deferred tax asset 959,026 10,661 969,687

Prepaid expenses 43,114 - 43,114

4,335,008 93,509 4,428,517

Net Capital before haircuts on securities positions 26,713,172 1,032,M5 27,745,177

Haircuts on securities positions:

Other securities 577,662 - 577,662

Net Capital $ 26,135,510 S 1,032,005 $ 27,167,515

Minimum net capital required (6-2/3% of aggregate indebteness) 311,538 (68,800) 242,738

Fxt:ess net capital $ 25,823,972 $ 1,100,805 $ 26,924,777

Aggregate indebtedness

Iteins included in statement of financial condition:

Payable to parent 282,880 (65,711) 217,169

Accrued and other liabilities 4,390,190 (966,294) 3,423,896

Total aggregate indebtedness $ 4,673,070 $ (1,032,005) S 3,641,065

Ratio of aggregate indebtedness to net capital 0.18 to 1 0.13 to 1

(1) Adjustments areas follows:

Member's equity adjustment of $1,125,514 related mainly to Q4 non-cash capital contribution for income tax provisions.

Receivables From exchanges adjustment for $82,848 for NYSETRF revenue.

Deferred tax asset adjustment of $10,661 related to adjustments to Q4 taxprovisions.

Payable to parent adjustment of($65,711) related to adjustments related to year-end bonuses.

Accrued and other liabilities adjustment of ($966,294) related imainly to Q4 taxprovis ions and capital contnbutions.

Confidential 15

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Schedule H & I

IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Computation for Determination of Reserve Requirements for Brokers and Dealers Pursuant to Rule15c3-3 under the Securities Exchange Act of 1934 and Information Relating to Possession or ControlRequirements for Brokers and Dealers Pursuant to Rule 150-3 under the Securities Exchange Actof 1934

December 31, 2016

The Company is exempt from Rule 15c3-3 pursuant to the provisions of Section (k)(2)(ii) of therule.

Confidential 16

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Addendum D-3Unaudited financial statements of IEX Ventures LLC

for the fiscal year ending 12/31/2016

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IEX VENTURES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Table of Contents

Page

Unaudited Statement of Financial Condition

Unaudited Statement of Income

Unaudited Statement of Changes in Member's Equity

Notes to Financial Statements 7-11

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Financial ConditionDecember 31, 2016

Assets

Cash 37,405

Investment in TradeWind 6,800,000

TOTAL ASSETS $ 6,837,405

Liabilities and Member's Equity

Liabilities:

Accrued and other liabilities $ -

TOTAL LIABILITIES

Member's equity:

Member's equity 6,837,405

TOTAL LIABILITIES AND MEMBER'S EQUITY $ 6,837,405

See notes to financial statements

Confidential 3

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IEX Ventures LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Income

For the Year Ended December 31, 2016

Revenues:

Other $ 39,600

Total revenues 39,600

Operating expenses:

Software licensing fee 100

Professional fees 3,000

Other 96

Total operating expenses 3,196

Income before other 36,404

Gain on investment 4,800,000

Net income 4,836,404

See notes to financial statements

Confidential 4

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member's

Equity

Balance at January 1, 2016 $ -

Capital contributions 2,001,001

Net income 4,836;404

Balance at December 31, 2016 $ 6,837,405

See notes to financial statements

Confidential

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial. StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Ventures LLC (the "Company") is an investment company that seeks to leverage thetechnology developed by the IEX organization. The Company is a Delaware limited liabilitycompany and a wholly-owned subsidiary of IEX Group, Inc. ("Parent"). The Company wasformed in June 2015.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities anddisclosure of contingent assets and liabilities at the date of the financial statements and the reportedamounts of revenue and expenses during the reporting period. Actual results could differmaterially from those estimates.

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricingan asset or liability. The hierarchy for inputs used in measuring fair value is as follows:

1. Level 1 Inputs—quoted prices in active markets for identical assets or liabilities2. Level 2 Inputs—observable inputs, other than quoted prices in active markets for

identical assets and liabilities3. Level 3 Inputs—unobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair valuehierarchy. In such cases, the level within which the fair value measurement is categorized is basedon the lowest level input that is significant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financialinstruments have bid and ask prices that can be observed in the marketplace. For financialinstruments whose inputs are based on bid-ask prices, the financial instrument is valued at thepoint within the bid-ask range that meets our best estimate of fair value. The Company uses pricesand inputs that are current as of the measurement date. For financial instruments that do not havereadily determinable fair values using quoted market prices, the determination of fair value is basedupon consideration of available information, including types of financial instruments, currentfinancial information, restrictions on dispositions, fair values of underlying financial instrumentsand quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and othertechniques. Adjustments to valuations derived from valuation models may be made when, in

Confidential 7

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

management's judgment, features of the financial instrument such as its complexity, the market inwhich the financial instrument is traded and risk uncertainties about market conditions require thatan adjustment be made to the value derived from the models. Adjustments from the price derivedfrom a valuation model reflect management's judgment that other participants in the market forthe financial instrument being measured at fair value would also consider in valuing that samefinancial instrument. To the extent that valuation is based on models or inputs that are lessobservable or unobservable in the market, the determination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors,including, for example, the type of financial instrument and market conditions. As theobservability of prices and inputs may change for a financial instrument from period to period, thiscondition may cause a transfer of an instrument among the fair value hierarchy levels. Transfersamong the levels are recognized at the beginning of each period. The degree of judgment exercisedin determining fair value is greatest for instruments categorized in Level 3. The valuation processinvolved for Level 3 measurements is completed at least annually. The Company will generallyemploy multiple valuation methodologies when determining the fair value of investmentscategorized as Level 3, such as market comparable analysis and discounted cash flow analysis.The market comparable analysis considers key financial inputs, recent public and privatetransactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodologyinclude the discount rate for the investment and assumed inputs used to calculate terminal values,such as price/earnings multiples. Upon completion of the valuations conducted using thesemethodologies, a weighting is ascribed to each method and the ultimate fair value recorded for aparticular investment will generally be within a range suggested by the methodologies. Whendetermining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discountedcash flow analysis and the expected holding period.

Fair Value Option

The Company is accounting for its investment in TradeWind Markets Inc. ("TradeWind") as anequity method investment and has elected the fair value option and records this investment at fairvalue with changes in fair value recorded in the Consolidated Statement of Income.

The primary reason for electing the fair value option is to reflect economic events in earnings ona timely basis.

Confidential 8

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, "Revenue Recognition". The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is an entity should recognize revenue to depict the transfer of promised goods or servicesto customers in an amount that reflects the consideration it expects to receive in exchange for thosegoods or services. The standard also requires more detailed disclosures. The standard providesalternative methods of initial adoption and is effective for annual reporting periods beginning afterDecember 15, 2018, including interim periods within that reporting period, for non-public entities.The Company is evaluating this guidance, but does not expect it to materially impact the financialstatements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and.,about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

3. Concentration of Credit Risk

Cash

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution within FDIC limits.

4. Related Party Transactions

Expense Sharing

The Company earned $39,600 as a result of compensation expense sharing with its investmentcompany, TradeWind.

TradeWind

In April 2016, the Company contributed a license and cash to TradeWind valuded at $6,800,000.

The value of the Company's investment in TradeWind as of June 14, 2016 was determined basedprimarily on the market approach but also on estimated cash flows based on entity specific criteria

Confidential

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

and other qualitative and quantitative factors. The value at which the Company's investments arecarried on its books are adjusted to estimated fair value at the end of each period. The fair valueof TradeWind at December 31, 2016 was determined to approximate the value of the investmentat June 14, 2016 given the lack of significant subsequent events.

5. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, includingarbitrations, class actions and other litigation, arising in connection with its activities as a securitiesexchange. The Company may also be involved, from time to time, in other reviews, investigations,and proceedings (formal and informal) by governmental and self-regulatory agencies regardingthe Company's business. Where available information indicates that it is probable a liability hadbeen incurred at the date of financial statements and the Company can reasonably estimate theamount of that loss, the Company accrues the estimated loss by a charge to income. Managementbelieves that the resolution of any unknown matter will not result in any materially adverse effecton the Company's financial position, results of operations or cash flows.

6. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements wereavailable to be issued, and have determined that there are no subsequent events requiringdisclosures or adjustments to the financial statements.

Confidential 10

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Investors' Exchange LLC 1 646 343 2000 tel4 World Trade Center, 44' Floor 1 888 481 9706 tel

New York, New York 10007 www.iextrading.com

July 27, 2017

U.S. Securities and Exchange Commission

Jeanette MarshallDivision of Trading and Markets

100 F St., NE

Washington, DC 02549-7010

S E GMail processing

Section

JUL

Washington CSC412

~up r

Re: Investors' Exchange LLC — Amendment No. 14 to Form 1 Application for

Registration as a National Securities Exchange Pursuantto Section 6 of the Securities Exchange Act of 1934

Dear Ms. Marshall:

We previously submitted Amendment No. 14 to our Form 1 application on June 28, 2017 and July24, 2017. We hereby withdraw in their entirety: (1) the submission of Addenda D-1, D-2, and D-3

submitted on June 28, 2017, (2) the submission of Addendum D-1 submitted on July 24, 2017, and (3) the

requests for confidential treatment thereof. In their place, please accept the enclosed filing, which

contains the following addenda:

Exhibit D

Addendum D-1 Unaudited financial statements of IEX Group, Inc. for the fiscal year ending

12/31/2016

Addendum D-2 Audited financial statements of IEX Services LLC for the fiscal year ending

12/31/2016Addendum D-3 Unaudited financial statements of IEX Ventures LLC for the fiscal year

ending 12/31/2016

Please feel free to contact me at (646) 343-2040 with any questions. Thank you.

Regards,

a

Sophia Lee

General Counsel

Enclosures

cc: Marlene Olsen, Division of Trading and MarketsRichard Holley III, Division of Trading and MarketsMichou Nguyen, Division of Trading and Markets

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Investors' Exchange LLC

Date of filing: June 28, 2017

Date as of which the information is accurate: June 28, 2017

Exhibit D

For each subsidiary or affiliate of the exchange, provide unconsolidated financial statements for the

latest fiscal year. Such financial statements shall consist, at a minimum, of a balance sheet and anincome statement with such footnotes and other disclosures as are necessary to avoid rendering the

financial statements misleading. If any affiliate or subsidiary is required by another Commission rule

to submit annual financial statements, a statement to that effect, with a citation to the otherCommission rule, may be provided in lieu of the financial statements required here.

Attached as Addendum D-1 are the unaudited financial statements of IEX Group, Inc. for the fiscal year

ending 12/31/2016.

Attached as Addendum D-2 are the audited financial statements of IEX Services LLC for the fiscal year

ending 12/31/2016.

Attached as Addendum D-3 are the unaudited financial statements of IEX Ventures LLC for the fiscal year

ending 12/31/2016.

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Addendum D-1Unaudited financial statements of IEX Group, Inc.

for the fiscal year ending 12/31/2016

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IEX GRO U P,1N C.

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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IEX GROUP, INC.

Table of Contents

Page

Unaudited Statement of Financial Condition as at December 31, 2016 1

Unaudited Statement of Income for the Year Ended December 31, 2016 2

Unaudited Statement of Stockholders' Equity for the Year Ended December 31, 2016 3

Unaudited Statement of Cash Flows for the Year Ended December 31, 2016 4

Notes to Financial Statements 5-12

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IEX Group, Inc.

Unaudited Statement of Financial Condition

December 31, 2016

ASSETS

Cash and cash equivalents $ 25,757,710

Intercompany receivables 2,350,428

Other receivables 104,750

Prepaid expenses 1,860,669

Restricted cash 351,673

Marketable securities, at fair value 23,056,513Property and equipment, net of accumulated depreciation of $4,041,003 atDecember 31, 2016 4,528,194Software development costs, net of accumulated amortization of $6,964,498 atDecember 31, 2016 5,922,883

Loan receivable 443,103

Investments, at cost 7,021,201

Deferred tax asset 3,272,756

Security deposits 685,115

Total assets $ 75,354,995

LIABILITIES AND EQUITY

Liabilities:

Accounts payable 143,175

Taxes payable 309,857

Accrued expenses and other liabilities 2,859,404

Total liabilities 3,312,436

Stockholders' Equity:

Preferred stock - $0.01 par value, 5,020,882 shares authorized at December 31, 2016

Convertible Series A-I - 375,000 shares issued and outstanding at December 31,2016 3,750Convertible Series B-1- 2,440,000 shares issued and outstanding at December31, 2016 24,400Convertible Series C - 2,205,882 shares issued and outstanding at December 31,

2016 22,059Common stock - $0.01 par value, 10,100,000 shares authorized, 3,140,379 sharesissued and outstanding as of December 31, 2016 31,404

Treasury stock, 80,708 shares as of December 31, 2016 (3,149,472)

Additional paid-in capital 113,608,972

Promissory notes receivable, related party (2,055,030)

Accumulated surplus/(deficit) (36,443,524)

Total Stockholders' Equity 72,042,559

Total liabilities and stockholders' equity $ 75,354,995

See notes to unaudited financial statements

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IEX Group, Inc.Unaudited Statement of Income

For the Year Ended December 31, 2016

Revenues:

SW License Revenue $ 2,130,916

Other 683,499

Total revenues 2,814,415

Total cost of revenues -

Total revenues, less cost of revenues 2,814,415

Operating expenses:

Employee compensation and benefits 9,412,971

Technology and communications 1,234,179

Depreciation and amortization 5,189,473

Professional fees 1,488,660

Regulatory fees 126,164

Rent and office 435,988

Insurance 304,454

Other 680,295

Total expenses 18,872,184

Income before income taxes (16,057,769)

Income taxbenefit (expense) 2,794,795Net income $ (13,262,974)

See notes to unaudited financial statements

2

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IEX Group, Inc.

Unaudited Statement of Cash FlowsFor the Year Ended December 31, 2016

Cash flows from operating activities:

Net income $ (13,262,974)

Adjustments to reconcile net income to net cash provided by operating activities

Depreciation and amortization 5,189,473

Stock based compensation 2,737,553

Deferred taxes (3,272,756)

Interest income (25,400)

Changes in operating assets and liabilities:

Intercompany receivables 1,020,312

Other receivables (67,988)

Prepaid expenses (186,362)

Subordinated Loan 14,494,555

Other assets 396,073

Accounts payable 59,197

Taxes payable 77,670Accrued expenses and other liabilities 1,069,608

Net cash provided by operating activities 8,228,961

Cash flows from investing activities:

Purchase of property and equipment (1,060,097)

Software capitalization (3,263,266)

Purchase of marketable securities (23,701,699)

Sale of marketable securities 20,495,000

Issuance of loan receivable (443,103)Investments in other entities (4,601,001)

Net cash used in investing activities (12,574,166)

Cash flows from financing activities:Proceeds from exercise of stock options 938,412

Treasury stock (2,273,290)

Net cash used in financing activities (1,334,878)

Net increase (decrease) in cash andcash equivalents (5,680,083)

Cash and cash equivalents at beginning of period 31,437,793

Cash and cash equivalents at end of period $ 25,757,710

Supplemental disclosure of non-cash financing and investing activities:Share-based compensation to software developers subject to capitalization $ 1,251,654

See notes to unaudited financial statements

4

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

1. Organization and Nature of Business

IEX Group, Inc. (the "Company") was formed under the laws of the State of Delaware for the purpose of developingand operating an Alternative Trading System ("ATS") through its wholly-owned subsidiary, IEX Services LLC("Services"). Services is a broker-dealer registered with the Securities and Exchange Commission (the "SEC") andis a member of various exchanges and the Financial Industry Regulatory Authority ("FINRA").

In addition to Services, the Company is 100% owner of two additional subsidiaries, Investors' Exchange LLC("Exchange") (formed in May 2014 and started business activities in August 2016) and IEX Ventures LLC("Ventures") (formed in June 2015).

During the year, Services operated an ATS which provided execution services for its broker-dealer subscribers.Services also offered order routing services to other venues. The ATS ceased operations on September 1, 2016 withthe advent of its affiliate, Exchange. Services serves solely as the routing facility for Exchange as at September 2,2016.

Exchange is a financial technology company that develops and operates electronic markets for the trading of listedequity securities in the United States (U.S.) Exchange was approved by the SEC as a national stock exchange on June17, 2016 and began business operations on August 19, 2016.

2. Significant Accounting Policies

Basis of Presentation

The unaudited financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of the unaudited financial statements in conformity with U.S. GAAP requires management to makeestimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assetsand liabilities at the date of the unaudited financial statements and the reported amounts of revenue and expensesduring the reporting period. Actual results could differ materially from those estimates.

Restricted Cash

The Company has a deposit outstanding as of December 31, 2016, of approximately $350,000 with a financialinstitution that is used as collateral and security for the Company's corporate commercial card program.

Receivables

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA"). Other receivables represent amounts owed from third party vendors.

Marketable Securities

The Company's portfolio of marketable securities consists of corporate and other debt securities and is presented onthe Unaudited Statement of Financial Condition at fair value at the end of each reporting period. Gains and lossesresulting from the change in fair value of these securities are recognized in the Unaudited Statement of Income inOther revenues.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricing an asset or liability.The hierarchy for inputs used in measuring fair value is as follows:

1. Level 1 Inputs—quoted prices in active markets for identical assets or liabilities2. Level 2 Inputs—observable inputs, other than quoted prices in active markets for identical assets and

liabilities3. Level 3 Inputs—unobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In suchcases, the level within which the fair value measurement is categorized is based on the lowest level input that issignificant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financial instruments have bid and askprices that can be observed in the marketplace. For financial instruments whose inputs are based on bid-ask prices,the financial instrument is valued at the point within the bid-ask range that meets our best estimate of fair value. TheCompany uses prices and inputs that are current as of the measurement date. For financial instruments that do nothave readily determinable fair values using quoted market prices, the determination of fair value is based uponconsideration of available information, including types of financial instruments, current financial information,restrictions on dispositions, fair values of underlying financial instruments and quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and other techniques. Adjustments tovaluations derived from valuation models may be made when, in management's judgment, features of the financialinstrument such as its complexity, the market in which the financial instrument is traded and risk uncertainties aboutmarket conditions require that an adjustment be made to the value derived from the models. Adjustments from theprice derived from a valuation model reflect management's judgment that other participants in the market for thefinancial instrument being measured at fair value would also consider in valuing that same financial instrument, Tothe extent that valuation is based on models or inputs that are less observable or unobservable in the market, thedetermination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors, including, for example, thetype of financial instrument and market conditions. As the observability of prices and inputs may change for afinancial instrument from period to period, this condition may cause a transfer of an instrument among the fair valuehierarchy levels. Transfers among the levels are recognized at the beginning of each period. The degree of judgmentexercised in determining fair value is greatest for instruments categorized in Level 3. The valuation process involvedfor Level 3 measurements is completed at least annually. The Company will generally employ multiple valuationmethodologies when determining the fair value of investments categorized as Level 3, such as market comparableanalysis and discounted cash flow analysis. The market comparable analysis considers key financial inputs, recentpublic and private transactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodology include the discountrate for the investment and assumed inputs used to calculate terminal values, such as price/earnings multiples. Uponcompletion of the valuations conducted using these methodologies, a weighting is ascribed to each method and theultimate fair value recorded for a particular investment will generally be within a range suggested by themethodologies. When determining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discounted cash flow analysisand the expected holding period.

Property and Equipment, net

Property and equipment primarily represents servers, network switches and firewalls and is carried at cost lessaccumulated depreciation. Depreciation is recognized on a straight-line basis over the estimated useful lives of theassets, which is generally three years. See note 6 for further discussion.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Software Development Costs

Capitalization of software development costs begins upon the establishment of technological feasibility of the productand ends upon its general release. After technological feasibility is established, material software development costsare capitalized and then amortized on a straight-line basis over the estimated product life. Costs incurred during thepreliminary project and post-implementation stages are expensed as incurred. Capitalized costs are amortized on astraight-line basis over a period of three years. See note 7 for further discussion.

Long-Lived Assets

Long-lived assets such as property and equipment and software development costs are evaluated for impairment whenevents or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. When theindicators of impairment are present and the estimated undiscounted future cash flows from the use of these assets isless than the assets' carrying value, the related assets will be written down to fair value.

Investments

Investments for which the Company does not have the ability to exert significant influence over operating and financialpolicies are generally accounted for using the cost method of accounting in accordance with ASC 325-10, Investments— Other. At December 31, 2016, the Company had a cost method investment of $20,000 included in Investments, atcost. The cost method investment was a non-cash investing activity acquired in connection with one-time consultingservices provided to the investee. The Company monitors its cost method investment for indicators of impairmenteach reporting period.

In addition, the Company has made capital contributions to its 3 subsidiaries (IEX Services, Investors' Exchange andIEX Ventures) which are being shown as Investments, at cost on the Statement of Financial Condition. These amountsare as follows:

Investors' Exchange LLC $ 5,000,100

IEX Ventures LLC 2,001,001

IEX Services LLC 100

$ 7,001,201

Income Taxes

Deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases ofassets and liabilities and their financial reporting amounts at each year-end based on enacted tax laws and statutorytax rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowancesare established when necessary to reduce net deferred tax assets to the amount expected to be realized. Income taxbenefit (expense) is the current tax expense for the period and the change during the period in deferred tax assets andliabilities.

The Company follows the provisions governing the accounting for uncertain tax positions as addressed in FinancialAccounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740, "Income Taxes." TheCompany did not record a liability for unrecognized tax benefits at December 31, 2016 and 2015. The Company hasno tax positions at December 31, 2016 and 2015 for which the ultimate deductibility is highly certain but for whichthere is uncertainty about the timing of such deductibility. The Company recognizes interest and penalties accruedrelated to unrecognized tax benefits in interest expense and penalties in operating expenses. No such interest orpenalties were recognized for the years ended December 31, 2016 and 2015 and the Company had no accruals forinterest and penalties at December 31, 2016 and 2015.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with

Customers (Topic 606), which supersedes the revenue recognition guidance in ASC 605, Revenue Recognition. The

new revenue recognition standard sets forth a five-step revenue recognition model to determine when and how revenueis recognized. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of

promised goods or services to customers in an amount that reflects the consideration it expects to receive in exchangefor those goods or services. The standard also requires more detailed disclosures. The standard provides alternativemethods of initial adoption and is effective for annual reporting periods beginning after December 15, 2017, andinterim periods within annual periods beginning after December 15, 2018. The Company is evaluating this guidance,

but does not expect adoption to materially impact the financial statements of the Company.

In June 2014, the FASB issued ASU 2014-12, Compensation — Stock Compensation (Topic 718), which requires thata performance target that affects vesting and that could be achieved after the requisite service period be treated as a

performance condition. ASU 2014-12 was effective for annual reporting periods and interim periods beginning afterDecember 15, 2015. The adoption did not have an impact on the financial statements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue asa Going Concern. ASU 2014-15 provides guidance on management's responsibility in evaluating whether there issubstantial doubt about a company's ability to continue as a going concern and about related footnote disclosures. Foreach reporting period, management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year from the date the financialstatements are issued. The amendments in ASU 2014-15 were effective for annual reporting periods ending afterDecember 15, 2016, and for annual and interim periods thereafter. The adoption did not have an impact on the financialstatements of the Company.

In January 2016, FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and FinancialLiabilities. ASU No. 2016-01 requires equity investments to be measured at fair value with changes in fair valuerecognized in net income; simplifies the impairment assessment of equity investments without readily determinablefair values by requiring a qualitative assessment to identify impairment; eliminates the requirement for public businessentities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to bedisclosed for financial instruments measured at amortized cost on the balance sheet; requires public business entitiesto use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; requires anentity to present separately in other comprehensive income the portion of the total change in the fair value of a liabilityresulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fairvalue in accordance with the fair value option for financial instruments; requires separate presentation of financialassets and financial liabilities by measurement category and form of financial assets on the balance sheet or theaccompanying notes to the financial statements and clarifies that an entity should evaluate the need for a valuationallowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferredtax assets. ASU No. 2016-01 is effective for financial statements issued for fiscal years beginning after December 15,2017, and interim periods within those fiscal years. The Company is currently evaluating the impact that ASU No.2016-01 will have on its unaudited financial statements and related disclosures.

In February 2016, FASB issued ASU No. 2016-02, Leases ('Topic 842) which supersedes FASB ASC Topic 840,Leases (Topic 840) and provides principles for the recognition, measurement, presentation and disclosure of leases forboth lessees and lessors. The new standard requires lessees to apply a dual approach, classifying leases as either

finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by thelessee, This classification will determine whether lease expense is recognized based on an effective interest methodor on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right-of-useasset and a lease liability for all leases with a term of greater than twelve months regardless of classification. Leaseswith a term of twelve months or less will be accounted for similar to existing guidance for operating leases. Thestandard is effective for annual and interim periods beginning after December 15, 2018, with early adoption permittedupon issuance. The Company does not expect adoption of this guidance to have a material impact on our financialstatements.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principalversus Agent Considerations. The purpose of ASU 2016-08 is to clarify the implementation of guidance on principalversus agent considerations in ASU 2014-09, which is not yet effective. The amendments in ASU No. 2016-08 areeffective for annual reporting periods beginning after December 15, 2017, and interim periods within annual periodsbeginning after December 15, 2018. The Company is currently assessing the impact of ASU 2016-08 on its financialstatements and related disclosures.

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718), Improvementsto Employee Share-Based Payment Accounting. Under ASU 2016-09, companies will no longer record excess taxbenefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess taxbenefits and tax deficiencies as income tax expense or benefit in the income statement, and the APIC pools will beeliminated. In addition, ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companiescan recognize them. ASU 2016-09 also requires companies to present excess tax benefits as an operating activity onthe statement of cash flows rather than as a financing activity. Furthermore, ASU 2016-09 will increase the amountan employer can withhold to cover income taxes on awards and still qualify for equity classification. ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory incometax withholding obligation as a financing activity on the statement of cash flows. Under current U.S. GAAP, it wasnot specified how these cash flows should be classified. In addition, companies will now have to elect whether toaccount for forfeitures on share-based payments by (1) recognizing forfeitures of awards as they occur or (2)estimating the number of awards expected to be forfeited and adjusting the estimate through current earnings ascurrently required. The amendments of this ASU are effective for annual periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018., Early adoption is permitted but all ofthe guidance must be adopted in the same period. The Company is currently assessing the impact that ASU 2016-09will have on its financial statements.

In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): IdentifyingPerformance Obligations and Licensing. The purpose of ASU 2016-10 is to clarify the guidance on identifyingperformance obligations and the implementation guidance on licensing in ASU 2014-09, which is not yet effective.The amendments in ASU No. 2016-08 are effective for annual reporting periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018. The Company is currently assessingthe impact of ASU 2016-08 on its financial statements and related disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification of Certain Cash Receiptsand Cash Payments, which addresses eight specific cash flow issues with the objective of reducing the existingdiversity in practice in how certain cash receipts and cash payments are presented and classified in the statement ofcash flows. The standard is effective for fiscal years beginning after December 15, 2018, and interim periods withinfiscal years beginning after December 15, 2019. Early adoption is permitted, including adoption in an interim period.The Company is currently in the process of evaluating the impact of this new pronouncement on its statements of cashflows.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash. ThisASU requires that cash segregated for regulatory and other purposes be included in cash and cash equivalents in thestatements of cash flows and is required to be applied retrospectively. The ASU is effective for fiscal years beginningafter December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoptionis permitted, on a retrospective basis, including adoption in an interim period. Adoption will affect cash flows fromoperating activities on the Company's Unaudited Statements of Cash Flows to the extent that the Company holdsrestricted cash at the time of adoption, but will not have any effect on the Company's financial condition or results ofoperations.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) - ClarEying the Definition ofa Business. The ASU amends the definition of a business and provides a threshold which must be considered todetermine whether a transaction is an asset acquisition or a business combination. The ASU is effective for annualperiods beginning after December 15, 2018, and interim periods within annual periods beginning after December 15,2019. Early adoption is permitted. Because ASU 2017-01 applies on a prospective basis to business combinationsand deconsolidations that occur after adoption of its provisions, adoption is not expected to have an impact on theCompany's financial statements.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

3. Concentration of Credit Risk

Cash and Cash Equivalents

The Company defines cash and cash equivalents as cash on hand, demand deposits with financial institutions and shortterm liquid investments with an initial maturity of less than 3 months. Cash balances in individual banks may exceedthe federally insured limit of $250,000 by the Federal Deposit Insurance Corporation (the "FDIC"). At December 31,2016, the Company had approximately $23.5 million, in excess of the insured limit.

As of December 31, 2016, cash equivalents of approximately $2.2 million consist of money market funds.

Credit Risk

The Company's receivables are limited mainly to intercompany receivables from its subsidiaries and any amountsowed from third party vendors.

4. Receivables

As of December 31, 2016, the Company had amounts receivable from Subsidiaries and Others as follows (dollars inthousands):

Intercompany $ 2,350

Other 105

$ 2,455

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA").

Other receivables consist mainly of amounts owed from third party vendors.

The Loan receivable is with a third party borrower, interest on the loan accrues at a rate equal to prime + 2% and ispayable on the last day of each year following the issuance of the loan or upon repayment or prepayment of a principalamount.

5. Fair Value of Financial Instruments

A summary of our financial assets that are measured at fair value on a recurring basis by level within the fair valuehierarchy is as follows (dollars in thousands):

Fair Value Measurement as of December 31, 2016

r Pwl 1 1-17 1-1 A Total

Assets

Marketable securities, at fair value:US corporate securities $ $ 9,573 $ - $ 9,573

US government securities _ _..

_ . _ ::

_. _

_ ._

8,259 _ .... _..._

8,259

Other debt securities - 5,224 - 5,224

Total $ 8,259 $ 14,798 $ $ 23,051

The fair values of marketable securities are determined using quoted market prices from daily exchange traded marketsbased on the closing price as of December 31, 2016 are classified as Level 1 and 2 of the fair value hierarchy.

10

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

6. Property and Equipment

Property and equipment consists of (dollars in thousands):

12/31/2016

Conputers and equipment $ 6,494

Furniture and fixtures 704

Leasehold improvements 1,371

Total property and equipment 8,569

Accumulated depreciation (4,041)

Total property and equipment, net

Depreciation expense of property and equipment amounted to approximately $2.0 million for the year endedDecember 31, 2016.

7. Software Development Costs

Software development costs consists of (dollars in thousands):

12/31/2016

Software development costs $ 12,887

Less: Accumulated amortization (6,964).

$ 5,923

During 2016, software development costs amounting to approximately $4.5 million were capitalized and amortizationexpense was approximately $3.2 million.

Estimated future annual amortization expense is as follows (dollars in thousands):

Year Ending December 31

2017 3,157

2018 2,094

2019 672

8. Income Taxes

FASB ASC 740 requires that a valuation allowance be established when it is more likely than not that all or a portionof a deferred tax asset will not be realized. In assessing the realizability of the deferred tax assets, the Companyconsidered the scheduled expiration of certain net operating loss carryforwards, projected future taxable income andcertain distinct tax planning strategies. Based on the assessment performed, the Company concluded that it is likelythat these deferred tax assets will be utilized. During the year ended December 31, 2016, the Company released thevaluation allowance against the deferred tax assets of approximately $3.3 million.

The major components of the Company's deferred tax assets (liabilities) are as follows (dollars in thousands):

Noncurrent deferred tax assets (liabilities)Net operating loss 1,487

Software amortization (2,603)

Stock-based compensation expense 3,292

Research and development and AMT credits 1,851

Other (754)

3,273

Valuation allowance -Total $ 3,273

11

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

The income tax benefit as of December 31, 2016, of approximately $2.8 million includes the effect of the release of

the valuation allowance and is net of the current provision for income taxes of approximately $460,000, consisting of

$150,000 for federal income taxes and $310,000 for state and local income taxes.

At December 31, 2016, the Company had federal net operating loss carryforwards of approximately $3.3 million

which will expire from 2033 through 2035. The NOL is subject to a limitation in the amount of approximately $1.9

million in addition to an annual limitation of approximately $5.2 million under Internal Revenue Code §382. Similarly

determined limitations under Internal Revenue Code §383 apply to certain tax credit carry forwards.

The Company is also subject to certain State and local taxes based on capital which are included in Other expenses.

The jurisdictions open for audit are Federal, New York State and New York City from 2013 to date.

Income tax expense differs from the tax that would result from applying federal statutory tax rates primarily due to

permanent differences, tax credits generated from research and development activities and the release of the valuation

allowance related to deferred tax assets.

9.401(k) Plan

The Company has a 401(k) plan with a third-party provider. Employer contributions are discretionary. During the

year ended December 31, 2016, the Company did not make any contributions.

10. Commitments, Contingencies and Guarantees

Leases

Rent expense for the year ended December 31, 2016 was approximately $892,000. In addition, the Company iscurrently in year 2 of a 7-year lease agreement for its office space at 4 World Trade Center.

At December 31, 2016, the future minimum lease payments are as follows (dollars in thousands):

Year Ending December 31

2017 925

2018 925

2019. 925

2020 925

Thereafter 2,002

As of December 31, 2016, the Company does not have any existing leases for computer equipment. Equipment lease

expenses for the year ended December 31, 2016 was approximately $1.1 million.

11. Subsequent Events

The Company has evaluated subsequent events through April 25, 2017, the date the financial statements were available

to be issued, and has determined that there are no subsequent events requiring disclosures or adjustments to thefinancial statements, except for those noted below.

The Company amended its 401(k) plan to allow for the matching of employee contributions effective February 15,

2017. The Company has agreed to match 5% of an employee's semi-monthly pay up to an annual maximum amountof $5,000. There are currently 58 employees participating in the plan.

12

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Addendum D-2Audited financial statements of IEX Services LLC

for the fiscal year ending 12/31/2016

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UNITED STATESSECURITIES AND EXCHANGE COMMISSION N 323!-012-3

Washington, D.C. 20549 Expires: May31,2017Estimated average burden

ANNUAL AUDITED REPORT hours per response ..............12.00

FORM X 17A-5 6tigMijlj Prr)6wib1N0 SEC FILE NUMBER

PART III skjobah 8-69280

FACING PAGE 112017Information Required of Brokers and Dealers Pursuant to Section 17 of the

~-+ In T I Ut,Securities Exchange Act of 1934 and Rule l ad We'reunder

REPORT FOR THE PERIOD BEGINNING 01/01/16 AND ENDING 12/31/16MM/DDIYY MM/DD/YY

A. REGISTRANT IDENTIFICA'T`ION

NAME OF BROKER-DEALER: IEX Services LLC FIC'IAI II.

ADDRESS OF PRINCIPAL PLACE OF BUSINESS: (Do not use P.O. Box No.) FIRM I.D. NO.

4 World Trade Center, 44t11 Floor(No. and Street)

___N9M y_ff_ --(City) (State) (Zip Code)

NAME AND TELEPHONE NUMBER OF PERSON TO CONTACT IN REGARD TO THIS REPORT

>l~hzl~.s it _"134310-3-0 _(Area Code - Telephone Number)

B. ACCOUNTANT IDENTIFICATION

INDEPENDENT PUBLIC ACCOUNTANT whose opinion is contained in this Report*

Deloitte & Touche LLP

(Name - if individual, state last, first, middle namne)

30 Rockefeller Center New York NY ,10112(Address) (City) (State)ip Code)

CHECK ONE: 4 {' i

0 Certified Public Accountant

❑ Public Accountant

❑ Accountant not resident in United States or any of its possessions. -~

_EQQ.~ _JF1CI A I t LS,E__0N.I..Y _ CIO

4C a "IS -n- exeinp ion rout t e requirement that the annual report ie cove i 11y the opinion oj an independent ptl 1 is accountan,

must be supported by a statement offacts and circumstances relied on as the basis for the exemption. See Section 240.17a-5(e)(2)Potential persons who are to respond to the collection ofinformation contained in this form are not required to respond

SEC 1410 (06-02) unless the form displays a currently valid OMB control number.

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IEX SERVICES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

SEC ID Number — 8-69280

FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULESAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

ANDREPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

This report is deemed CONFIDENTIAL in accordance with Rule 17a-5(e)(3) under the Securities Exchange Actof 1934. A Statement of Financial Condition, bound separately, has been filed with the Securities and Exchange

Commission simultaneously herewith as a Public Document.

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AFFIRMATION

I, John Schwall, affirm that, to the best of my knowledge and belief the accompanying financial statements

and supplemental schedules pertaining to IEX Services LLC, as of and for the year ended December 31,

2016, are true and correct. I further affirm that neither the Company nor any partner, proprietor, principal

officer or director has any proprietary interest in any account classified solely as that of a customer.

Signature

Chief Operating OfficerTitle

Notary Public

BENJAMIN B. AISENNotary Public, State of New York

No. 02AI6247140Oualltied in New York County

Commisaion Expires Aug. 22, 201111

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Table of Contents

This report ** contains check all applicable boxes). Pa eX I Report of Independent Registered Public Accounting Firm. 1X a) Facing Page.X b) Statement of Financial Condition. 2X c) Statement of Income. 3X (d) Statement of Cash Flows. 4X (e) Statement of Changes in Member's Equity. 5X f) Statement of Changes in Liabilities Subordinated to Claims of Creditors. 6X Notes to Financial Statements. 7-14X (g) Computation of Net Capital for Brokers and Dealers Pursuant to Rule 15c3-1 under the

Securities Exchange Act of 1934.15

X (h) Computation for Determination of Reserve Requirements for Brokers and DealersPursuant to Rule 156-3 under the Securities Exchange Act of 1934.

16

X I (i) Information Relating to the Possession or Control Requirements for Brokers and DealersPursuant to Rule 150-3 under the Securities Exchange Act of 1934.

_TX1

16

(j) A Reconciliation, including Appropriate Explanations, of the Computation of Net Capitalunder Rule 150-1 and the Computation for Determination of the Reserve Requirementsunder Rule 150-3 included in item

15

(k) A Reconciliation Between the Audited and Unaudited Statements of Financial Conditionwith Respect to Methods of Consolidation (not applicable).

X 1 An Oath or Affirmation.X (m) A Report Describing the Broker-Dealer's Compliance with the Exemption Provisions

of Section (k) of SEC Rule 15c3-3 (the "Exemption Report") and Report of IndependentRe istered Public Accounting Firm Thereonfiled separately).

**For conditions of confidential treatment of certain portions of this filing, see section 240.17a-5(e)(3).

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Deloitte,Deloitte & Touche LLP

30 Rockefeller Plaza

New York, NY 10112-0015

Tel: +1212 489 1600

Fax: +1212 489 1687

www.deloitte.com

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Member of IEX Services LLC:

We have audited the accompanying statement of financial condition of IEX Services LLC (the"Company") as of December 31, 2016, and the related statements of income, cash flows, changes inmember's equity, and changes in liabilities subordinated to claims of general creditors for the year thenended that you are filing pursuant to Rule 17a-5 under the Securities Exchange Act of 1934. Thesefinancial statements are the responsibility of the Company's management. Our responsibility is to expressan opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting OversightBoard (United States). Those standards require that we plan and perform the audit to obtain reasonableassurance about whether the financial statements are free of material misstatement. The Company is notrequired to have, nor were we engaged to perform, an audit of its internal control over financial reporting,Our audit included consideration of internal control over financial reporting as a basis for designing auditprocedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion onthe effectiveness of the Company's internal control over financial reporting. Accordingly, we express nosuch opinion. An audit also includes examining, on a test basis, evidence supporting the amounts anddisclosures in the financial statements, assessing the accounting principles used and significant estimatesmade by management, as well as evaluating the overall financial statement presentation. We believe thatour audit provides a reasonable basis for our opinion,

In our opinion, such financial statements present fairly, in all material respects, the financial position ofIEX Services LLC as of December 31, 2016, and the results of its operations and its cash flows for theyear then ended December 31, 2016 in conformity with accounting principles generally accepted in theUnited States of America.

The supplemental schedules g, h, and i listed in the accompanying table of contents have been subjectedto audit procedures performed in conjunction with the audit of the Company's financial statements. Thesupplemental schedules are the responsibility of the Company's management. Our audit proceduresincluded determining whether the supplemental schedules reconcile to the financial statements or theunderlying accounting and other records, as applicable, and performing procedures to test thecompleteness and accuracy of the information presented in the supplemental schedules. In forming ouropinion on the supplemental schedules, we evaluated whether the supplemental schedules, including theirform and content, are presented in compliance with Rule 17a-5 under the Securities Exchange Act of1934. In our opinion, such schedules are fairly stated, in all material respects, in relation to the financialstatements as a whole.

I" a or" LLP

February 28, 2017

Member ofDeloltte Touche rohmatso Limited

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Financial ConditionDecember 31, 2016

Ass ets

Cash and cash equivalents $ 30,884,302

Receivables from subscribers 224,149

Receivables from clearing film 501,940

Receivables fromexchanges 516,717

Due from affiliate ~rY ~~ ' ̀'~a;: ;, 2,674,850

Deferred tax asset 969,687

Pi~paid expenses ~'~ ~ ";~,w ,. , 43.114

TOTAL ASSETS $ 35,814,759r~t`'j~~+}~i

_ ~;, _ x~~Si'~c~ ~ . "~{►rtS •• a~.x7i. '+tic

"}1~.Aa

_ , yV,}.y

i

&1j~~]],

Liabilities and Member's Exituty

Liabilities: t r ~ ;~,~ fi` - fiPayable to parent $ 217,169

Accrued expenses and other liabilities 3,423,896

TOTAL LIABILITIES 3,6=11,065

0"

Member's equity: v,Mcinbct's equity - <, -32,173,694

TOTAL LIABILITIES AND MEMBER'S EQUITY $ 35,814,759

See notes to financial statements

Confidential 2

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IEX Services LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)Statement of Income

For the Year Ended December 31, 2016

Revenues:Matelied fees 8 32,238,139

Routed fees 17,013,038

Regulatory transaction fees 5,259,944

Related paily expense sharing 11,400,971

Other 2,507,422

Total revenues 68,419,514

Cost of revenues:Rooting fees 24,886;133

Section 31 fees 6,267,468

Clearing fees 3,340,421

Other 437,029

Total cost of revenues 34,931,051

Total revenues, less cost of revenues 33,488,463

Operating expenses:

Technology

and communications 7,851,089

Employee compensation and benefits 5,634,082

Software licensing fee 856,349

Interest on subordinated debt 430,514

Professional fees 545,074

Regulatory fees 365,421

Rent and office 319,558

Other 621,729

Total operating expenses 16,623,816.

Income before income taxes 16,864,07

Provision for inconx taxes 7,436,739Net income 9,427,908

See notes to financial statements

Confidential 3

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Cash FlowsFor the Year Ended December 31, 2016

Cas h flom from operating activities:

Net income b 9,427;908Adjustments to reconcile net income to net cash provided by operating activities

Interest accrued on subordinated bon-owings 430,514

Income tax provision 7,436,739Deferred tax asset (531,508)

Changes in operating assets and liabilities,Receivables fromsubscribers 10,140,952

Receivables from clearing f m (1,473)Receivables fromexchanges 693,629

Due %•ani affiliate (2,674;8:50)

Other receivables 2,722Prepaid expenses (1,764)

Payable to parent (2,642,494)

Accrued expenses and othet'lia.bilities (481,307)Net cash proNided by operatino activities 21,799,068

Cash flogs from financing actiiides:Repayment of liabilities subordinated to clainn ofcreditora,,, (1025,069)

Net cash used by financing activities (14,92 ,069)

7, OR .', a "N'Net increase in cash z. 61$73,999Cash at beginning of year 24,Q10,303Cash at end of year $ 30,884,302

Non-cash financing activities:Incon-c tax payable (See Notes 5 and 6)

See notes to financial statements

7;436,739

Confidential 4

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1EX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member'sEqui ty

Balance at Deccrnber 31, 2015 $ 14,797,971

Non-cash capital contributions (See Note 5) 7,947,815

Net income 9,427,908

Balance at December 31, 2016 $ 32,173,694

See notes to financial statements

Confidential

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Changes in Liabilities Subordinated to Claims of CreditorsFor the Year Ended December 31, 2016

'Liabilities subordinated to claims of creditors at December 31, 2015 $ 141494,555

Additional accrued interest

Repayment of liabilities subordniated to chaims, of creditorsLiabilities subordinated to claims of creditors at December 31, 2016

See notes to financial statements

430,514

(14,92,069)

Confidential 6

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Financial StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Services LLC (the "Company") is a broker-dealer registered with the Securities and ExchangeCommission (the "SEC") and is a member of various exchanges and the Financial IndustryRegulatory Authority ("FINRA"). The Company is a Delaware limited liability company and awholly-owned subsidiary of IEX Group, Inc. ("Parent").

During the year, the Company operated an Alternative Trading System ("ATS") which providedexecution services for its broker-dealer subscribers. The Company also offered order routingservices to other venues. The ATS ceased operations on September 1, 2016 with the advent of itsaffiliate, Investors' Exchange LLC ("Exchange"). The Company serves solely as the routingfacility for the Exchange as of September 2, 2016.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

U.se of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities anddisclosure of contingent assets and liabilities at the date of the financial statements and the reportedamounts of revenue and expenses during the reporting period. Actual results could differmaterially from those estimates.

Revenue Recognition

Through September 1, 2016, the Company's primary business was matching equity shares on itstrading system for its subscribers. Matched fees included shares matched on its trading systemwhereby shares whose price was $1.00/share or greater were assessed a charge of 9 mils per share($0.09 per 100 shares). For shares whose price was less than $1.00 a fee of 0.30% of the totalnotional value of the trade (shares x price) was assessed. Routing fees include fees on ordersrouted to other venues on a cost-plus-1-mil basis ($0.01 per 100 shares). The Company offeredseveral pricing promotions during the year to eligible subscribers. Fees were recorded on a tradedate basis as securities transactions occurred.

Regulatory transaction fees represent Section 31 fees paid to the SEC pursuant to Section 31 ofthe Securities Exchange Act of 1934 by the exchanges. The Company recorded Regulatorytransaction fees as revenues with a corresponding cost of revenue for Section 31 fees remitted tothe Company's clearing firm.

On August 19, 2016, the Company entered into a new Tri-Party Expense Sharing Agreement ("Tri-Party ESA") with the Parent and Exchange to properly allocate the shared expenses incurredamongst the parties (See Note 5). In addition to the monthly fee for use of the routing facilitydescribed in the next paragraph, the Company is also reimbursed by the Exchange for costs

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incurred on behalf of the Exchange. These reimbursements are presented on a gross basis inRelated party expense sharing with the corresponding expenses presented in the Cost of Revenuesand Operating Expenses on the Company's Statement of Income, as the Company is consideredthe primary obligor.

Other revenues consisted primarily of revenue from trade reporting and other revenues receivedfrom exchanges. Beginning September 2, 2016, the Company also earned $100,000 per monthserving as the routing facility for the Exchange.

All fees are recorded on a trade date basis as securities transactions occur.

Cost of Revenues

The Company incurs routing, Section 31, clearing and other fees directly related to its revenue.

Routing fees and Section 31 fees are described in Revenue Recognition and clearing fees consistof costs to process, clear and settle transactions.

Income Taxes

The Company is included in the income tax returns filed by the Parent, which files as a C-corporation. Income taxes are calculated as if the Company filed on a separate return basis and asa C-corporation. The Company records income tax expense (benefit) using the asset and liabilitymethod. Under this method, deferred tax assets and liabilities are determined based upon thetemporary differences between the financial statement and income tax bases of assets and liabilitiesusing currently enacted tax rates in effect for the year in which the differences are expected toreverse.

The Company recognizes deferred tax assets to the extent that it believes these assets are morelikely than not to be realized. In making such a determination, the Company considers all availablepositive and negative evidence, including future reversals of existing taxable temporarydifferences, projected future taxable income, tax-planning strategies, and results of recentoperations. A valuation allowance is established to reduce the deferred tax assets to the amountthat is more likely than not to be realized.

The Company follows the provisions of uncertain tax positions as addressed in FinancialAccounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740, IncomeTaxes. The Company did not record a liability for unrecognized tax benefits. The Company hasno tax positions at December 31, 2016 for which the ultimate deductibility is highly certain but forwhich there is uncertainty about the timing of such deductibility. The Company recognizes interestand penalties accrued related to unrecognized tax benefits in interest expense and penalties inoperating expenses. No such interest or penalties were recognized for the year ended December31, 2016, and the Company had no accruals for interest and penalties at December 31, 2016.

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an. asset or paid to transfer a liabilityin an orderly transaction between market participants at the measurement date, or an exitprice. The amounts presented for financial assets and liabilities on the Statement of FinancialCondition are carried at fair value or at amounts that, because of their short-term nature, theCompany believes approximate current fair value.

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The fair value of the Company's financial instruments is measured based on a three-levelhierarchy:

• Level l — quoted prices for identical assets or liabilities in active markets.

• Level 2 — observable inputs, other than quoted prices included in Level 1, for the asset orliability, or prices for similar assets and liabilities.

Level 3 — unobservable inputs supported by little or no market activity and that aresignificant to the fair value of the assets or liabilities.

All financial assets and liabilities are considered Level 2 under the fair value hierarchy, except forcash and cash equivalents which are considered Level 1.

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, Revenue Recognition. The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is that an entity should recognize revenue to depict the transfer of promised goods orservices to customers in an amount that reflects the consideration it expects to receive in exchangefor those goods or services. The standard also requires more detailed disclosures. The standardprovides alternative methods of initial adoption and is effective for annual reporting periodsbeginning after December 15, 2017, and interim periods within annual periods beginning afterDecember 15, 2018. The Company is evaluating this guidance, but does not expect it to materiallyimpact the financial statements of the Company.

In June 2014, the FASB issued ASU 2014-12, Compensation — Stock Compensation (Topic 718),which requires that a performance target that affects vesting and that could be achieved after therequisite service period be treated as a performance condition. ASU 2014-12 was effective forannual reporting periods and interim periods beginning after December 15, 2015. The adoptiondid not have an impact on the financial statements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic606): Principal versus Agent Considerations. The purpose of ASU 2016-08 is to clarify theimplementation of guidance on principal versus agent considerations. The amendments in ASUNo. 2016-08 are effective for annual reporting periods beginning after December 15, 2017, andinterim periods within annual periods beginning after December 15, 2018. The Company iscurrently assessing the impact of ASU 2016-08 on its financial statements and related disclosures.

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In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic718), Improvements to Employee Share-Based Payment Accounting. Under ASU 2016-09,companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess tax benefits and tax deficiencies as incometax expense or benefit in the income statement, and the APIC pools will be eliminated. In addition,ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companies canrecognize them. ASU 2016-09 also requires companies to present excess tax benefits as anoperating activity on the statement of cash flows rather than as a financing activity. Furthennore,ASU 2016-09 will increase the amount an employer can withhold to cover income taxes on awardsand still qualify for the exception to liability classification for shares used to satisfy the employer'sstatutory income tax withholding obligation. An employer with a statutory income tax withholdingobligation will now be allowed to withhold shares with a fair value up to the amount of taxes owedusing the maximum statutory tax rate in the employee's applicable jurisdiction(s). ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfyits statutory income tax withholding obligation as a financing activity on the statement of cashflows. Under current U.S. GAAP, it was not specified how these cash flows should be classified.In addition, companies will now have to elect whether to account for forfeitures on share-basedpayments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number ofawards expected to be forfeited and adjusting the estimate when it is likely to change as currentlyrequired. The amendments of this ASU are effective for annual periods beginning after December15, 2017, and interim periods within annual periods beginning after December 15, 2018. Earlyadoption is permitted but all of the guidance must be adopted in the same period. The Company iscurrently assessing the impact that ASU 2016-09 will have on its financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification ofCertain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues withthe objective of reducing the existing diversity in practice in how certain cash receipts and cashpayments are presented and classified in the statement of cash flows. The standard is effective forfiscal years beginning after December 15, 2018, and interim periods within fiscal years beginningafter December 15, 2019. Early adoption is permitted, including adoption in an interim period. TheCompany is currently in the process of evaluating the impact of this new pronouncement on itsstatements of cash flows.

3. Concentration of Credit Risk and Major Subscribers

Cash and Cash Equivalents

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution in excess of FDIClimits of approximately $1.8 million.

Cash equivalents of approximately $28.9 million consist of money market funds.

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4. Receivables From Subscribers, Clearing Firm and Exchanges

As of December 31, 2016, the Company had amounts receivable from subscribers, clearing firmand exchanges as follows (in thousands):

SubscribersClearing FinuExchanges

Receivables

$ 224

502

-- 517

$ 1,243

Receivables frorn subscribers consist of all trading fees (matched, routed and regulatorytransaction fees) billed to the Company's subscribers.

Receivables from clearing fnn consist of a $500,000 security deposit plus interest, accumulatedat the interest rate as defined in the clearing agreement.

Receivables from exchanges consist of rebates from exchanges.

5. Related Party Transactions

Subordinated Loan Agreement

The Company entered into a Subordinated Loan Agreement ("SLA") on September 13, 2013 withthe Parent in order to fund its operations. The SLA was for $13,000,000 with a 5% per annuminterest charge with a three-year term, which matured on September 12, 2016. The SubordinatedLoan and related interest accrual were allowable in computing net capital under the SEC's UniformNet Capital Rule and approved by FINRA.

For the year ended December 31, 2016, the Company recorded approximately $431,000 in interestexpense associated with the terms and conditions of the SLA.

During 2016 the Company completely repaid the principal plus accrued interest of approximately$14.9 million to the Parent.

Software License and Expense Sharing Agreement

The Company entered into a Software License and Expense Sharing Agreement ("ESA") with theParent on October 1, 2013 to reimburse the Parent on a monthly basis for expenses incurred on theCompany's behalf. Included in the ESA is a quarterly Software License Fee for the use of thetechnology which operates its ATS and is the property of the Parent. This Software License Feewas $325,000 per quarter.

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For the year ended December 31, 2016, the Company's allocation of expenses, according to thetenrrs and conditions of the ESA, are shown below (in thousands):

Technology and communications $ 5,841Employee compensation and benefits 5,634Software licensing fee 856Professional fees 307Rent and office 320;Regulatory fees 26Tax Provision 20Other 606

13,610

A new Tri-Party ESA with the Exchange and the Parent went into effect August 19, 2016 and itreplaced the prior ESA with Parent. The Parent will reimburse the Company for all expensesrelated to the operation and maintenance of the Smart Order Router, including without limitation,personnel expenses, licensing and registration fees, all costs of revenues, all assessments imposedby regulators, banking fees, legal fees, taxes, rent for independent commercial space leases, allexpenses to outside vendors, infrastructure and data center maintenance and software support andmaintenance expenses (collectively, "SOR Expenses"). At December 31, 2016, amounts due tothe Parent relating to the Tri-Party ESA were approximately $217,000, payable within 30 days.

As part of the new Tri-Party ESA, the Company agreed to be reimbursed on a monthly basis forSOR expenses incurred on behalf of the Exchange. At December 31, 2016, amounts due from theExchange relating to the Tri-Party ESA were approximately $2.7 million, receivable within 30days. Included in the amount due from the Exchange is a monthly Software License Fee for routingservices of $100,000 per month.

For the year ended December 31, 2016, the Company's allocation of expenses to the Exchange,according to the terms and conditions of the ESA, are shown below (in thousands):

Routing fees $ 8,589Technology and communications 1,240SEC Section 31 fees 1,031Clearing fees 489Regulatory fees 42Other 10

$

11,401

Capital Contributions

The provision for income taxes under the separate return method and related payable to the Parenthas been recorded as a non-cash capital contribution since no payment will be made in accordancewith the Tri-Party ESA. During 2016, the Parent made approximately $8.0 million of such non-cash capital contributions which included an increase to the deferred tax asset of approximately$532,000.

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6. Income Taxes

At December 31, 2016, the Company had a deferred tax asset of approximately $1.0 millionrelating to stock based compensation.

The provision for income taxes of approximately $7.4 million consists of current provision offederal income taxes of approximately $5.1 million and $2.3 million for state and local incometaxes, which is net of a deferred benefit of approximately $532,000 for the year ended December31, 2016.

The federal income tax expense under the separate return method and payable to the Parent hasbeen recorded as a capital contribution since no payment will be made in accordance with the Tri-Party ESA.

The jurisdictions open for audit are Federal, New York State and New York City from 2013 todate.

Income tax expense (benefit) differs from the tax that would result from applying federal statutorytax rates primarily due to unfavorable permanent book-to-tax differences and the valuationallowance related to deferred tax assets.

7. Share-Based Compensation

The Parent maintains the 2012 Equity Incentive Plan (the "Plan"), which was approved by theParent's Board of Directors on June 27, 2012 and the Parent's Stockholders on June 29, 201.2. Theplan permits the grant of incentive stock options, non-statutory stock options, stock appreciationrights, restricted stock awards, restricted stock unit awards and other stock awards to employees,directors and consultants. The Parent issues shares from authorized but unissued or reacquiredCommon Stock. The fair value of RSUs and options is based on the most recent valuationcompleted by the Parent on the date of grant and is recorded as compensation expense.

The Parent allocates stock compensation expense in addition to salary and benefit expenses to theCompany through the ESA and the Tri-Party ESA based upon services provided by the Parent'semployees. During the year ended December 31, 2016, the Company incurred approximately $1.4million in stock compensation expense which is recorded in Employee compensation and benefitson the Statement of Income.

8. Net Capital

The Company is subject to the SEC Uniform Net Capital Rule 156-1, which requires themaintenance of minimum net capital at the greater of 6 2/3% of aggregate indebtedness orminimum net capital of $5,000 at December 31, 2016.

On September 20, 2016, the Company changed its minimum net capital requirement under SECRule 15c3-1 from $100,000 to $5,000 effective October 1, 2016. Due to its cessation of operatingas an ATS and relinquishing its rights to act as an agent in a Private Placement, the Company hasplaced itself under the classification of "Other Broker Dealer".

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At December 31, 2016, the Company had net capital of approximately $27.2 million, which

exceeded the minimum requirement of approximately $241,000 by $27.0 million. The Company's

ratio of aggregate indebtedness to net capital was 0.13 to 1.

9. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, including

arbitrations, class actions and other litigation, arising in connection with its activities as a broker-dealer. The Company may also be involved, from time to time, in other reviews, investigations,and proceedings (formal and informal) by governmental and self-regulatory agencies regarding

the Company's business. Where available information indicates that it is probable a liability hadbeen incurred at the date of financial statements and the Company can reasonably estimate theamount of that loss, the Company accrues the estimated loss by a charge to income. Management

believes that the resolution of any unknown matter will not result in any materially adverse effecton the Company's financial position, results of operations or cash flows.

10. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements were

available to be issued, and have determined that there are no subsequent events requiringdisclosures or adjustments to the financial statements other than discussed below.

The Parent granted approximately 130,000 restricted stock units during January 2017 which vestover 4 years. The Company will be allocated stock compensation expense through the Tri-PartyESA based on services provided by the Parent's employees.

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Schedule G

IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Computation of Net Capital for Brokers and Dealers Pursuant to Rule 156-1 Under the SecuritiesExchange Act of 1934

December 31, 2016

Not Capital

Total member's equity

Subordinated liabilities

Total capital and allowable subordinated liabilities

Deductibles/charges :

Nonallowable assets:

Receivables from subscribers

Receivables fromexchanges

Due from affiliate

Deferred tax asset

Prepaid expenses

Net Capital before haircuts on securities positions

Haircuts on securities positions:

Other securities

Net Capital

Minimum net capital required (6-2/3% of aggregate indebteness)

Excess net capital

Aggregate indebtedness

Items included in statement of financial condition:

Payable to parent

Accrued and other liabilities

Total aggregate indebtedness

Ratio of aggregate indebtedness to net capital

As reportedin (unaudited)FOCUS Part11A report Auditedfiledon amount as of

January 26, Adjustments December 31,2017 (1) 2016

$ 311048,180 $ 1,125,514 $ 32,173,694

•D n,vto, l ov .D I, I LJ,J 1'-t D .)L,1 / J,U"

224,149 - 224,149

433,869 82,848 516,717

2,674,850 - 2,674,850

959,026 10,661 969,687

43,114 - 43,114

4,335,008 93,509 4,428,517

26,713,172 1,032,005 27,745,177

577,662 - 577,662

$ 26,135,510 $ 1,032,005 $ 27,167,515

311,538 (68,800) 242,738

$ 25,823,972 $ 1,100,805$

26,924,777

282,880 (65,711) 217,169

4,390,190 (966,294) 3,423,896

$ 4,673,070 $ (1,032,005) $ 3,641,065

0.18 to 1 0.13 to 1

(1) Adjustments areas follows:

Members equity adjustment of $1,125,514 related mainly to Q4 non-cash capital contribution for income tax provisions.

Receivables from exchanges adjustment for $82,848 for NYSE TRF revenue.

Deferred taxasset adjustment of $10,661 related to adjustments to Q4 taxprovisions.

Payable to parent adjustment of ($65,711) related to adjustments related to year-end bonuses.

Accrued and other liabilities adjustment of ($966,294) related mainly to Q4 taxprovisions and capital contributions.

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Schedule H & I

IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Computation for Determination of Reserve Requirements for Brokers and Dealers Pursuant to Rule156-3 under the Securities Exchange Act of 1934 and Information Relating to Possession or ControlRequirements for Brokers and Dealers Pursuant to Rule 15c3-3 under the Securities Exchange Actof 1934

December 31, 2016

The Company is exempt from Rule 15c3-3 pursuant to the provisions of Section (k)(2)(ii) of therule.

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Addendum D-3Unaudited financial statements of IEX Ventures LLC

for the fiscal year ending 12/31/2016

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IEX VENTURES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Table of Contents

Unaudited Statement of Financial Condition

Unaudited Statement of Income

Unaudited Statement of Changes in Member's Equity

Page

rd

Notes to Financial Statements 7-11

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Financial ConditionDecember 31, 2016

Assets

Cash

Investment in TradeWind

TOTAL ASSETS

37,405

6,800,000

$ 6,837,405

Liabilities and Member's Equity

Liabilities:

Accrued and other liabilities $ -

TOTAL LIABILITIES -

Member's equity:

Member's equity 6,837,405

TOTAL LIABILITIES AND MEMBER'S EQUITY $ 6;837,405

See notes to financial statements

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IEX Ventures LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of IncomeFor the Year Ended December 31, 2016

Revenues:

Other $ 39,600

Total revenues 39,600.

Operating expenses:

Software licensing fee 100

Professional fees 3,000

Other 96

Total operating expenses 3,196

Income before other 36,404

Crain on investment 4,800,000

Net income 4,836,404

See notes to financial statements

Confidential 4

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member's

Equity

Balance at January 1;.2016 $ -

Capital contributions 2,001,001

Net income 4,836,404

Balance at December 31, 2016 $ 6,837,405

See notes to financial statements

Confidential 5

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Ventures LLC (the "Company") is an investment company that seeks to leverage thetechnology developed by the IEX organization. The Company is a Delaware limited liability

company and a wholly-owned subsidiary of IEX Group, Inc. ("Parent"). The Company wasformed in June 2015.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities anddisclosure of contingent assets and liabilities at the date of the financial statements and the reportedamounts of revenue and expenses during the reporting period. Actual results could differmaterially from those estimates.

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricingan asset or liability. The hierarchy for inputs used in measuring fair value is as follows:

1. Level 1 Inputs—quoted prices in active markets for identical assets or liabilities2. Level 2 Inputs—observable inputs, other than quoted prices in active markets for

identical assets and liabilities3. Level 3 Inputsunobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair valuehierarchy. In such cases, the level within which the fair value measurement is categorized is basedon the lowest level input that is significant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financialinstruments have bid and ask prices that can be observed in the marketplace. For financialinstruments whose inputs are based on bid-ask prices, the financial instrument is valued at thepoint within the bid-ask range that meets our best estimate of fair value. The Company uses pricesand inputs that are current as of the measurement date. For financial instruments that do not havereadily determinable fair values using quoted market prices, the determination of fair value is basedupon consideration of available information, including types of financial instruments, currentfinancial information, restrictions on dispositions, fair values of underlying financial instrumentsand quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and othertechniques. Adjustments to valuations derived from valuation models may be made when, in

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

management's judgment, features of the financial instrument such as its complexity, the market inwhich the financial instrument is traded and risk uncertainties about market conditions require thatan adjustment be made to the value derived from the models. Adjustments from the price derivedfrom a valuation model reflect management's judgment that other participants in the market forthe financial instrument being measured at fair value would also consider in valuing that samefinancial instrument. To the extent that valuation is based on models or inputs that are lessobservable or unobservable in the market, the determination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors,including, for example, the type of financial instrument and market conditions. As theobservability of prices and inputs may change for a financial instrument from period to period, thiscondition may cause a transfer of an instrument among the fair value hierarchy levels. Transfersamong the levels are recognized at the beginning of each period. The degree of judgment exercisedin determining fair value is greatest for instruments categorized in Level 3. The valuation processinvolved for Level 3 measurements is completed at least annually. The Company will generallyemploy multiple valuation methodologies when determining the fair value of investmentscategorized as Level 3, such as market comparable analysis and discounted cash flow analysis.The market comparable analysis considers key financial inputs, recent public and privatetransactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodologyinclude the discount rate for the investment and assumed inputs used to calculate terminal values,such as price/earnings multiples. Upon completion of the valuations conducted using thesemethodologies, a weighting is ascribed to each method and the ultimate fair value recorded for aparticular investment will generally be within a range suggested by the methodologies. Whendetermining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discountedcash flow analysis and the expected holding period.

Fair Value Option

The Company is accounting for its investment in TradeWind Markets Inc. ("TradeWind") as anequity method investment and has elected the fair value option and records this investment at fairvalue with changes in fair value recorded in the Consolidated Statement of Income.

The primary reason for electing the fair value option is to reflect economic events in earnings ona timely basis.

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, "Revenue Recognition". The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is an entity should recognize revenue to depict the transfer of promised goods or servicesto customers in an amount that reflects the consideration it expects to receive in exchange for thosegoods or services. The standard also requires more detailed disclosures. The standard providesalternative methods of initial adoption and is effective for annual reporting periods beginning afterDecember 15, 2018, including interim periods within that reporting period, for non-public entities.The Company is evaluating this guidance, but does not expect it to materially impact the financialstatements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

3. Concentration of Credit Risk

Cash

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution within FDIC limits.

4. Related Party Transactions

Expense Sharing

The Company earned $39,600 as a result of compensation expense sharing with its investmentcompany, TradeWind.

TradeWind

In April 2016, the Company contributed a license and cash to TradeWind valuded at $6,800,000.

The value of the Company's investment in TradeWind as of June 14, 2016 was determined basedprimarily on the market approach but also on estimated cash flows based on entity specific criteria

Confidential 9

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

and other qualitative and quantitative factors. The value at which the Company's investments are

carried on its books are adjusted to estimated fair value at the end of each period. The fair value

of TradeWind at December 31, 2016 was determined to approximate the value of the investment

at June 14, 2016 given the lack of significant subsequent events.

5. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, including

arbitrations, class actions and other litigation, arising in connection with its activities as a securitiesexchange. The Company may also be involved, from time to time, in other reviews, investigations,

and proceedings (formal and informal) by governmental and self-regulatory agencies regarding

the Company's business. Where available information indicates that it is probable a liability had

been incurred at the date of financial statements and the Company can reasonably estimate the

amount of that loss, the Company accrues the estimated loss by a charge to income. Management

believes that the resolution of any unknown matter will not result in any materially adverse effect

on the Company's financial position, results of operations or cash flows.

6. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements were

available to be issued, and have determined that there are no subsequent events requiring

disclosures or adjustments to the financial statements.

Confidential 10

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Investors' Exchange LLC 1 646 343 2000 tel4 World Trade Center, 441h Floor 1 888 481 9706 tel

New York, New York 10007 www.iextrading.com

July 27, 2017

U.S. Securities and Exchange CommissionJeanette Marshall

Division of Trading and Markets100 F St., NE

Washington, DC 02549-7010

SECMail Processing -

Section

Washington DC412

rj SOP

Re: Investors' Exchange LLC—Amendment No. 14 to Form 1 Application for

Registration as a National Securities Exchange Pursuantto Section 6 of the Securities Exchange Act of 1934

Dear Ms. Marshall:

We previously submitted Amendment No. 14 to our Form 1 application on June 28, 2017 and July

24, 2017. We hereby withdraw in their entirety: (1) the submission of Addenda D-1, D-2, and D-3

submitted on June 28, 2017, (2) the submission of Addendum D-1 submitted on July 24, 2017, and (3) therequests for confidential treatment thereof. In their place, please accept the enclosed filing, which

contains the following addenda:

Exhibit D

Addendum D-1 Unaudited financial statements of IEX Group, Inc. for the fiscal year ending12/31/2016

Addendum D-2 Audited financial statements of IEX Services LLC for the fiscal year ending

12/31/2016Addendum D-3 Unaudited financial statements of IEX Ventures LLC for the fiscal year

ending 12/31/2016

Please feel free to contact me at (646) 343-2040 with any questions. Thank you.

t

Regards,

.; 1~ `'r 1

tDSophia Lee

General Counsel

Enclosures

cc: Marlene Olsen, Division of Trading and Markets

Richard Holley III, Division of Trading and MarketsMichou Nguyen, Division of Trading and Markets

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Investors' Exchange LLC

Date of filing: June 28, 2017

Date as of which the information is accurate: June 28, 2017

Exhibit D

For each subsidiary or affiliate of the exchange, provide unconsolidated financial statements for thelatest fiscal year. Such financial statements shall consist, at a minimum, of a balance sheet and anincome statement with such footnotes and other disclosures as are necessary to avoid rendering thefinancial statements misleading. If any affiliate or subsidiary is required by another Commission ruleto submit annual financial statements, a statement to that effect, with a citation to the otherCommission rule, may be provided in lieu of the financial statements required here.

Attached as Addendum D-1 are the unaudited financial statements of IEX Group, Inc. for the fiscal yearending 12/31/2016.

Attached as Addendum D-2 are the audited financial statements of IEX Services LLC for the fiscal yearending 12/31/2016.

Attached as Addendum D-3 are the unaudited financial statements of IEX Ventures LLC for the fiscal yearending 12/31/2016.

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Addendum D-1Unaudited financial statements of IEX Group, Inc.

for the fiscal year ending 12/31/2016

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IEX GROUP, INC.

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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IEX GROUP, INC.

Table of Contents

Unaudited Statement of Financial Condition as at December 31, 2016

Unaudited Statement of Income for the Year Ended December 31, 2016

Unaudited Statement of Stockholders' Equity for the Year Ended December 31, 2016

Unaudited Statement of Cash Flows for the Year Ended December 31, 2016

Notes to Financial Statements

Page

5-12

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IEX Group, Inc.Unaudited Statement of Financial Condition

December 31, 2016

ASSETS

Cash and cash equivalents $ 25,757,710

Intercompany receivables 2,350,428

Other receivables 104,750

Prepaid expenses 1,860,669

Restricted cash 351,673

Marketable securities, at fair value 23,056,513Property and equipment, net of accumulated depreciation of $4,041,003 atDecember 31, 2016 4,528,194Software development costs, net of accumulated amortization of $6,964,498 atDecember 31, 2016 5,922,883

Loan receivable 443,103

Investments, at cost 7,021,201

Deferred tax asset 3,272,756

Security deposits 685,115

Total assets $ 75,354,995

LIABILITIES AND EQUITY

Liabilities:

Accounts payable 143,175

Taxes payable 309,857

Accrued expenses and other liabilities 2,859,404

Total liabilities 3,312,436

Stockholders' Equity:

Preferred stock - $0.01 par value, 5,020,882 shares authorized at December 31, 2016

Convertible Series A-1- 375,000 shares issued and outstanding at December 31,2016 3,750Convertible Series B-1- 2,440,000 shares issued and outstanding at December31, 2016 24,400Convertible Series C - 2,205,882 shares issued and outstanding at December 31,2016 22,059

Common stock-$0.01 par value, 10,100,000 shares authorized, 3,140,379 sharesissued and outstanding as of December 31, 2016 31,404

Treasury stock, 80,708 shares as of December 31, 2016 (3,149,472)

Additional paid-in capital 113,608,972

Promissory notes receivable, related party (2,055,030)

Accumulated surplus/(deficit) (36,443,524)

Total Stockholders' Equity 72,042,559

Total liabilities and stockholders' equity $ 75,354,995

See notes to unaudited financial statements

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IEX Group, Inc.Unaudited Statement of Income

For the Year Ended December 31, 2016

Revenues:

SW License Revenue $ 2,130,916

Other 683,499

Total revenues 2,814,415

Total cost of revenues -

Total revenues, less cost of revenues 2,814,415

Operating expenses:

Employee compensation and benefits 9,412,971

Technology and communications 1,234,179

Depreciation and amortization 5,189,473

Professional fees 1,488,660

Regulatory fees 126,164

Rent and office 435,988

Insurance 304,454

Other 680,295

Total expenses 18,872,184

Income before income taxes (16,057,769)

Income taxbenefit (expense) 2,794,795

Net income $ (13,262,974)

See notes to unaudited financial statements

2

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IEX Group, Inc.Unaudited Statement of Cash Flows

For the Year Ended December 31, 2016

Cash flows from operating activities:Net income $ (13,262,974)

Adjustments to reconcile net income to net cash provided by operating activitiesDepreciation and amortization 5,189,473

Stock based compensation 2,737,553

Deferred taxes (3,272,756)

Interest income (25,400)

Changes in operating assets and liabilities:

Intercompany receivables 1,020,312

Other receivables (67,988)

Prepaid expenses (186,362)

Subordinated Loan 14,494,555

Other assets 396,073

Accounts payable 59,197

Taxes payable 77,670

Accrued expenses and other liabilities 1,069,608

Net cash provided by operating activities 8,228,961

Cash flows from investing activities:Purchase of property and equipment (1,060,097)

Software capitalization (3,263,266)

Purchase of marketable securities (23,701,699)

Sale of marketable securities 20,495,000

Issuance of loan receivable (443,103)Investments in other entities (4,601,001)

Net cash used in investing activities (12,574,166)

Cash flows from financing activities:Proceeds from exercise of stock options 938,412

Treasury stock (2,273,290)Net cash used in financing activities (1,334,878)

Net increase (decrease) in cash and cash equivalents (5,680,083)

Cash and cash equivalents at beginning of period 31,437,793Cash and cash equivalents at end of period $ 25,757,710

Supplemental disclosure of non-cash financing andinvesting activities:Share-based compensation to software developers subject to capitalization $ 1,251,654

See notes to unaudited financial statements

4

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

1. Organization and Nature of Business

IEX Group, Inc. (the "Company") was formed under the laws of the State of Delaware for the purpose of developingand operating an Alternative Trading System ("ATS") through its wholly-owned subsidiary, IEX Services LLC("Services"). Services is a broker-dealer registered with the Securities and Exchange Commission (the "SEC") andis a member of various exchanges and the Financial Industry Regulatory Authority ("FINRA").

In addition to Services, the Company is 100% owner of two additional subsidiaries, Investors' Exchange LLC("Exchange") (formed in May 2014 and started business activities in August 2016) and IEX Ventures LLC("Ventures") (formed in June 2015).

During the year, Services operated an ATS which provided execution services for its broker-dealer subscribers.Services also offered order routing services to other venues. The ATS ceased operations on September 1, 2016 withthe advent of its affiliate, Exchange. Services serves solely as the routing facility for Exchange as at September 2,2016.

Exchange is a financial technology company that develops and operates electronic markets for the trading of listedequity securities in the United States (U.S.) Exchange was approved by the SEC as a national stock exchange on June17, 2016 and began business operations on August 19, 2016.

2. Significant Accounting Policies

Basis of Presentation

The unaudited financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of the unaudited financial statements in conformity with U.S. GAAP requires management to makeestimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assetsand liabilities at the date of the unaudited financial statements and the reported amounts of revenue and expensesduring the reporting period. Actual results could differ materially from those estimates.

Restricted Cash

The Company has a deposit outstanding as of December 31, 2016, of approximately $350,000 with a financialinstitution that is used as collateral and security for the Company's corporate commercial card program.

Receivables

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA"). Other receivables represent amounts owed from third party vendors.

Marketable Securities

The Company's portfolio of marketable securities consists of corporate and other debt securities and is presented onthe Unaudited Statement of Financial Condition at fair value at the end of each reporting period. Gains and lossesresulting from the change in fair value of these securities are recognized in the Unaudited Statement of Income inOther revenues.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricing an asset or liability.The hierarchy for inputs used in measuring fair value is as follows:

1. Level 1 Inputs—quoted prices in active markets for identical assets or liabilities2. Level 2 Inputs—observable inputs, other than quoted prices in active markets for identical assets and

liabilities3. Level 3 Inputs—unobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such

cases, the level within which the fair value measurement is categorized is based on the lowest level input that is

significant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financial instruments have bid and ask

prices that can be observed in the marketplace. For financial instruments whose inputs are based on bid-ask prices,

the financial instrument is valued at the point within the bid-ask range that meets our best estimate of fair value. The

Company uses prices and inputs that are current as of the measurement date. For financial instruments that do not

have readily determinable fair values using quoted market prices, the determination of fair value is based upon

consideration of available information, including types of financial instruments, current financial information,

restrictions on dispositions, fair values of underlying financial instruments and quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and other techniques. Adjustments to

valuations derived from valuation models may be made when, in management's judgment, features of the financial

instrument such as its complexity, the market in which the financial instrument is traded and risk uncertainties about

market conditions require that an adjustment be made to the value derived from the models. Adjustments from the

price derived from a valuation model reflect management's judgment that other participants in the market for the

financial instrument being measured at fair value would also consider in valuing that same financial instrument. To

the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the

determination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors, including, for example, the

type of financial instrument and market conditions. As the observability of prices and inputs may change for a

financial instrument from period to period, this condition may cause a transfer of an instrument among the fair valuehierarchy levels. Transfers among the levels are recognized at the beginning of each period. The degree of judgment

exercised in determining fair value is greatest for instruments categorized in Level 3. The valuation process involvedfor Level 3 measurements is completed at least annually. The Company will generally employ multiple valuation

methodologies when determining the fair value of investments categorized as Level 3, such as market comparable

analysis and discounted cash flow analysis. The market comparable analysis considers key financial inputs, recent

public and private transactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodology include the discount

rate for the investment and assumed inputs used to calculate terminal values, such as price/earnings multiples. Upon

completion of the valuations conducted using these methodologies, a weighting is ascribed to each method and theultimate fair value recorded for a particular investment will generally be within a range suggested by the

methodologies. When determining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discounted cash flow analysisand the expected holding period.

Property and Equipment, net

Property and equipment primarily represents servers, network switches and firewalls and is carried at cost less

accumulated depreciation. Depreciation is recognized on a straight-line basis over the estimated useful lives of theassets, which is generally three years. See note 6 for further discussion.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Software Development Costs

Capitalization of software development costs begins upon the establishment of technological feasibility of the productand ends upon its general release. After technological feasibility is established, material software development costsare capitalized and then amortized on a straight-line basis over the estimated product life. Costs incurred during thepreliminary project and post-implementation stages are expensed as incurred. Capitalized costs are amortized on astraight-line basis over a period of three years. See note 7 for further discussion.

Long-Lived Assets

Long-lived assets such as property and equipment and software development costs are evaluated for impairment whenevents or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. When theindicators of impairment are present and the estimated undiscounted future cash flows from the use of these assets isless than the assets' carrying value, the related assets will be written down to fair value.

Investments

Investments for which the Company does not have the ability to exert significant influence over operating and financialpolicies are generally accounted for using the cost method of accounting in accordance with ASC 325-10, Investments— Other. At December 31, 2016, the Company had a cost method investment of $20,000 included in Investments, atcost. The cost method investment was a non-cash investing activity acquired in connection with one-time consultingservices provided to the investee. The Company monitors its cost method investment for indicators of impairmenteach reporting period.

In addition, the Company has made capital contributions to its 3 subsidiaries (IEX Services, Investors' Exchange andIEX Ventures) which are being shown as Investments, at cost on the Statement of Financial Condition. These amountsare as follows:

Investors! ExohangeLLC $ 5,000,100

IEX Ventures LLC 2,001,001

IEX Services LLC 100

$ 7,001,201

Income Taxes

Deferred income taxes are recognized for the tax consequences in future years of differences between the tax bases ofassets and liabilities and their financial reporting amounts at each year-end based on enacted tax laws and statutorytax rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances.are established when necessary to reduce net deferred tax assets to the amount expected to be realized. Income taxbenefit (expense) is the current tax expense for the period and the change during the period in deferred tax assets andliabilities.

The Company follows the provisions governing the accounting for uncertain tax positions as addressed in FinancialAccounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740, "Income Taxes." TheCompany did not record a liability for unrecognized tax benefits at December 31, 2016 and 2015. The Company hasno tax positions at December 31, 2016 and 2015 for which the ultimate deductibility is highly certain but for whichthere is uncertainty about the timing of such deductibility. The Company recognizes interest and penalties accruedrelated to unrecognized tax benefits in interest expense and penalties in operating expenses. No such interest orpenalties were recognized for the years ended December 31, 2016 and 2015 and the Company had no accruals forinterest and penalties at December 31, 2016 and 2015.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts withCustomers (Topic 606), which supersedes the revenue recognition guidance in ASC 605, Revenue Recognition. Thenew revenue recognition standard sets forth a five-step revenue recognition model to determine when and how revenueis recognized. The core principle of the guidance is that an entity should recognize revenue to depict the transfer ofpromised goods or services to customers in an amount that reflects the consideration it expects to receive in exchangefor those goods or services. The standard also requires more detailed disclosures. The standard provides alternativemethods of initial adoption and is effective for annual reporting periods beginning after December 15, 2017, andinterim periods within annual periods beginning after December 15, 2018. The Company is evaluating this guidance,but does not expect adoption to materially impact the financial statements of the Company.

In June 2014, the FASB issued ASU 2014-12, Compensation — Stock Compensation (Topic 718), which requires thata performance target that affects vesting and that could be achieved after the requisite service period be treated as aperformance condition. ASU 2014-12 was effective for annual reporting periods and interim periods beginning afterDecember 15, 2015. The adoption did not have an impact on the financial statements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue asa Going Concern. ASU 2014-15 provides guidance on management's responsibility in evaluating whether there issubstantial doubt about a company's ability to continue as a going concern and about related footnote disclosures. Foreach reporting period, management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year from the date the financialstatements are issued. The amendments in ASU 2014-15 were effective for annual reporting periods ending afterDecember 15, 2016, and for annual and interim periods thereafter. The adoption did not have an impact on the financialstatements of the Company.

In January 2016, FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and FinancialLiabilities. ASU No. 2016-01 requires equity investments to be measured at fair value with changes in fair valuerecognized in net income; simplifies the impairment assessment of equity investments without readily determinablefair values by requiring a qualitative assessment to identify impairment; eliminates the requirement for public businessentities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to bedisclosed for financial instruments measured at amortized cost on the balance sheet; requires public business entitiesto use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; requires anentity to present separately in other comprehensive income the portion of the total change in the fair value of a liabilityresulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fairvalue in accordance with the fair value option for financial instruments; requires separate presentation of financialassets and financial liabilities by measurement category and form of financial assets on the balance sheet or theaccompanying notes to the financial statements and clarifies that an entity should evaluate the need for a valuationallowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferredtax assets. ASU No. 2016-01 is effective for financial statements issued for fiscal years beginning after December 15,2017, and interim periods within those fiscal years. The Company is currently evaluating the impact that ASU No.2016-01 will have on its unaudited financial statements and related disclosures.

In February 2016, FASB issued ASU No. 2016-02, Leases (Topic 842) which supersedes FASB ASC Topic 840,Leases (Topic 840) and provides principles for the recognition, measurement, presentation and disclosure of leases forboth lessees and lessors. The new standard requires lessees to apply a dual approach, classifying leases as eitherfinance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by thelessee. This classification will determine whether lease expense is recognized based on an effective interest methodor on a straight-line basis over the term of the lease, respectively. A lessee is also required to record a right-of-useasset and a lease liability for all leases with a term of greater than twelve months regardless of classification. Leaseswith a term of twelve months or less will be accounted for similar to existing guidance for operating leases. Thestandard is effective for annual and interim periods beginning after December 15, 2018, with early adoption permittedupon issuance. The Company does not expect adoption of this guidance to have a material impact on our financialstatements.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principalversus Agent Considerations. The purpose of ASU 2016-08 is to clarify the implementation of guidance on principalversus agent considerations in ASU 2014-09, which is not yet effective. The amendments in ASU No. 2016-08 areeffective for annual reporting periods beginning after December 15, 2017, and interim periods within annual periodsbeginning after December 15, 2018. The Company is currently assessing the impact of ASU 2016-08 on its financialstatements and related disclosures.

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718), Improvementsto Employee Share-Based Payment Accounting. Under ASU 2016-09, companies will no longer record excess taxbenefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess taxbenefits and tax deficiencies as income tax expense or benefit in the income statement, and the APIC pools will beeliminated. In addition, ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companiescan recognize them. ASU 2016-09 also requires companies to present excess tax benefits as an operating activity onthe statement of cash flows rather than as a financing activity. Furthermore, ASU 2016-09 will increase the amountan employer can withhold to cover income taxes on awards and still qualify for equity classification. ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfy its statutory incometax withholding obligation as a financing activity on the statement of cash flows. Under current U.S. GAAP, it wasnot specified how these cash flows should be classified. In addition, companies will now have to elect whether toaccount for forfeitures on share-based payments by (1) recognizing forfeitures of awards as they occur or (2)estimating the number of awards expected to be forfeited and adjusting the estimate through current earnings ascurrently required. The amendments of this ASU are effective for annual periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018.. Early adoption is permitted but all ofthe guidance must be adopted in the same period. The Company is currently assessing the impact that ASU 2016-09will have on its financial statements.

In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): IdentifyingPerformance Obligations and Licensing. The purpose of ASU 2016-10 is to clarify the guidance on identifyingperformance obligations and the implementation guidance on licensing in ASU 2014-09, which is not yet effective.The amendments in ASU No. 2016-08 are effective for annual reporting periods beginning after December 15, 2017,and interim periods within annual periods beginning after December 15, 2018. The Company is currently assessingthe impact of ASU 2016-08 on its financial statements and related disclosures.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification of Certain Cash Receiptsand Cash Payments, which addresses eight specific cash flow issues with the objective of reducing the existingdiversity in practice in how certain cash receipts and cash payments are presented and classified in the statement ofcash flows. The standard is effective for fiscal years beginning after December 15, 2018, and interim periods withinfiscal years beginning after December 15, 2019. Early adoption is permitted, including adoption in an interim period.The Company is currently in the process of evaluating the impact of this new pronouncement on its statements of cashflows.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash. ThisASU requires that cash segregated for regulatory and other purposes be included in cash and cash equivalents in thestatements of cash flows and is required to be applied retrospectively. The ASU is effective for fiscal years beginningafter December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoptionis permitted, on a retrospective basis, including adoption in an interim period. Adoption will affect cash flows fromoperating activities on the Company's Unaudited Statements of Cash Flows to the extent that the Company holdsrestricted cash at the time of adoption, but will not have any effect on the Company's financial condition or results ofoperations.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) - Clar f ing the Definition ofa Business. The ASU amends the definition of a business and provides a threshold which must be considered todetermine whether a transaction is an asset acquisition or a business combination. The ASU is effective for annualperiods beginning after December 15, 2018, and interim periods within annual periods beginning after December 15,2019. Early adoption is permitted. Because ASU 2017-01 applies on a prospective basis to business combinationsand deconsolidations that occur after adoption of its provisions, adoption is not expected to have an impact on theCompany's financial statements.

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

3. Concentration of Credit Risk

Cash and Cash Equivalents

The Company defines cash and cash equivalents as cash on hand, demand deposits with financial institutions and shortterm liquid investments with an initial maturity of less than 3 months. Cash balances in individual banks may exceedthe federally insured limit of $250,000 by the Federal Deposit Insurance Corporation (the "FDIC"). At December 31,2016, the Company had approximately $23.5 million, in excess of the insured limit.

As of December 31, 2016, cash equivalents of approximately $2.2 million consist of money market funds.

Credit Risk

The Company's receivables are limited mainly to intercompany receivables from its subsidiaries and any amountsowed from third party vendors.

4. Receivables

As of December 31, 2016, the Company had amounts receivable from Subsidiaries and Others as follows (dollars in

thousands):

Intercompany $ 2,350

Other 105

$ 2,455

Intercompany receivables represent expenses incurred by the Company's subsidiaries under the current Tri-PartyExpense Sharing Agreement ("ESA").

Other receivables consist mainly of amounts owed from third party vendors.

The Loan receivable is with a third party borrower, interest on the loan accrues at a rate equal to prime + 2% and ispayable on the last day of each year following the issuance of the loan or upon repayment or prepayment of a principalamount.

5. Fair Value of Financial Instruments

A summary of our financial assets that are measured at fair value on a recurring basis by level within the fair valuehierarchy is as follows (dollars in thousands):

Assets

Marketable securities, at fair value:

US corporate securities

US government securities

Other debt securities

Total

Fair Value Measurement as of December 31, 2016

Leven Level Level Total

$ - $ 9,573 $ $ 9,573

8,259

8,259

5,224 5,224

$ 8,259 $ 14,798 $ $ 23,057

The fair values of marketable securities are determined using quoted market prices from daily exchange traded marketsbased on the closing price as of December 31, 2016 are classified as Level 1 and 2 of the fair value hierarchy.

10

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

6. Property and Equipment

Property and equipment consists of (dollars in thousands):

12/31/2016

Computers and equipment $ 6,494

Furniture and fudures 704

Leasehold improvements 1,371

Total property and equipment 8,569

Accumulated depreciation (4,041)

Total property and equipment, net $ 4,528

Depreciation expense of property and equipment amounted to approximately $2.0 million for the year endedDecember 31, 2016.

7. Software Development Costs

Software development costs consists of (dollars in thousands):

12/31/2016

Software development costs $ 12,887

Less: Accumulated amortization (6,964)

$ 5,923

During 2016, software development costs amounting to approximately $4.5 million were capitalized and amortizationexpense was approximately $3.2 million.

Estimated future annual amortization expense is as follows (dollars in thousands):

Year Ending December 31

2017 3,157

2018 2,094

2019 672

8. Income Taxes

FASB ASC 740 requires that a valuation allowance be established when it is more likely than not that all or a portionof a deferred tax asset will not be realized. In assessing the realizability of the deferred tax assets, the Companyconsidered the scheduled expiration of certain net operating loss carryforwards, projected future taxable income andcertain distinct tax planning strategies. Based on the assessment performed, the Company concluded that it is likelythat these deferred tax assets will be utilized. During the year ended December 31, 2016, the Company released thevaluation allowance against the deferred tax assets of approximately $3.3 million.

The major components of the Company's deferred tax assets (liabilities) are as follows (dollars in thousands):

Noncurrent deferred taxassets (liabilities)Net operating loss 1,487

Software amortization (2,603)

Stock-based compensation expense 3,292

Research and development and AMT credits 1,851

Other (754)

3,273

Valuation allowance -Total

$

3,273

I1

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IEX Group, Inc.Notes to Unaudited Financial Statements

As of and for the year ended December 31, 2016

The income tax benefit as of December 31, 2016, of approximately $2.8 million includes the effect of the release of

the valuation allowance and is net of the current provision for income taxes of approximately $460,000, consisting of

$150,000 for federal income taxes and $310,000 for state and local income taxes.

At December 31, 2016, the Company had federal net operating loss carryforwards of approximately $3.3 million

which will expire from 2033 through 2035. The NOL is subject to a limitation in the amount of approximately $1.9

million in addition to an annual limitation of approximately $5.2 million under Internal Revenue Code §382. Similarly

determined limitations under Internal Revenue Code §383 apply to certain tax credit carry forwards.

The Company is also subject to certain State and local taxes based on capital which are included in Other expenses.

The jurisdictions open for audit are Federal, New York State and New York City from 2013 to date.

Income tax expense differs from the tax that would result from applying federal statutory tax rates primarily due to

permanent differences, tax credits generated from research and development activities and the release of the valuation

allowance related to deferred tax assets.

9.401(k) Plan

The Company has a 401(k) plan with a third-party provider. Employer contributions are discretionary. During theyear ended December 31, 2016, the Company did not make any contributions.

10. Commitments, Contingencies and Guarantees

Leases

Rent expense for the year ended December 31, 2016 was approximately $892,000. In addition, the Company iscurrently in year 2 of a 7-year lease agreement for its office space at 4 World Trade Center.

At December 31, 2016, the future minimum lease payments are as follows (dollars in thousands):

Year Ending December 31

2017 925

2018 925

2019 925

2020 925

Thereafter 2,002

As of December 31, 2016, the Company does not have any existing leases for computer equipment. Equipment lease

expenses for the year ended December 31, 2016 was approximately $1.1 million.

11. Subsequent Events

The Company has evaluated subsequent events through April 25, 2017, the date the financial statements were availableto be issued, and has determined that there are no subsequent events requiring disclosures or adjustments to thefinancial statements, except for those noted below.

The Company amended its 401(k) plan to allow for the matching of employee contributions effective February 15,

2017. The Company has agreed to match 5% of an employee's semi-monthly pay up to an annual maximum amountof $5,000. There are currently 58 employees participating in the plan.

12

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Addendum D-2Audited financial statements of IEX Services LLC

for the fiscal year ending 12/31/2016

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UNITED STATES —D, g Rte,SECURITIESAND EXCHANGE COMMISSION ,

Washington, D.C. 20549 Expires: May31,2017Estimated average burden

ANNUAL AUDITEDI~F hours per response ..............12.00

0115!!' ; f,;1 1 k9 FORM X 17A-5 sling

Section SEC MY NUMBER

% ~" l '• PART III JUL 31 2017 8-69280

FACING PAGE Washington ®CInformation Required of Brokers and Dealers Pursua>tto Section 17 of the

Securities Exchange Act of 1934 and Rule 17a-5 Thereunder

REPORT FOR THE PERIOD BEGINNING 01/01/16 AND ENDING 12/31/16htM/DD/YY MM/DD/YY

A. REGISTRANT IDENTIFICATION

NAME OF BROKER-DEALER: IEX Services LLC GEEICIALUSEr

ADDRESS OF PRINCIPAL PLACE OF BUSINESS: (Do not use P.O. Box No.) FIRM I.D, NO.

4 World Trade Center, 441h Floor(No. and Street)

New YQrj__,.__ NY 1 007(City) (State) (Zip Code)

NAME AND TELEPHONE NUMBER OF PERSON TO CONTACT IN REGARD TO THIS REPORT,TQh>t -S ll (646) 343-2030

B. ACCOUNTANT IDENTIFICATION

INDEPENDENT PUBLIC ACCOUNTANT whose opinion is contained in this Report*

Deloitte & Touche LLP

30 Rockefeller Center(Address)

CHECK ONE:Certified Public Accountant

❑ Public Accountant

(Name — if individual, state last, first, middle name)

New York(city)

❑ Accountant not resident in United States or any of its possessions.

(Area Code— Telephone Number)

NY~ 1.0112_(Stale) (Zip Code)

must be supported by a statement offacts and circumstances relied on as the basis for the exemption. See Section 240.17x-5(e)(2)Potential persons who are to respond to the collection ofinformation contained in this form are not required to respond

SEC 1410 (06-02) unless theform displays a currently vaiidOMBcontro]number.

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IEX SERVICES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

SEC ID Number — 8-69280

FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULESAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

ANDREPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

This report is deemed CONFIDENTIAL in accordance with Rule 17a-5(e)(3) under the Securities Exchange Actof 1934, A Statement of Financial Condition, bound separately, has been filed with the Securities and Exchange

Commission simultaneously herewith as a Public Document.

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AFFIRMATION

I, John Schwall, affirm that, to the best of my knowledge and belief the accompanying financial statements

and supplemental schedules pertaining to IEX Services LLC, as of and for the year ended December 31,

2016, are true and correct. I further affirm that neither the Company nor any partner, proprietor, principal

officer or director has any proprietary interest in any account classified solely as that of a customer.

KM &W .Notary Public

BENJAMIN B. AISENNotary Public, State of New York

No. 02AI6247140Ouatified in New York County

Commission Expires Aug. 22,201-9

Signature

Chief Operating OfficerTitle

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

`fable of Contents

This report ** contains check all applicable boxes): Page

X Report of Independent Registered Public Accounting Firm. 1

X a Facing Page.X b) Statement of Financial Condition. 2

X c Statement of Income. 3X (d) Statement of Cash Flows. 4X (e) Statement of Changes in Member's Equity, 5X (f) Statement of Changes in Liabilities Subordinated to Claims of Creditors. 6

X Notes to Financial Statements. 7-14

X I (g) Computation of Net Capital for Brokers and Dealers Pursuant to Rule 15c3-1 under theSecurities Exchange Act of 1934.

15

X (h) Computation for Determination of Reserve Requirements for Brokers and DealersPursuant to Rule 156-3 under the Securities Exchange Act of 1934.

16

X (i) Information Relating to the Possession or Control Requirements for Brokers and DealersPursuant to Rule 15c3-3 under the Securities Exchange Act of 1934.

16

X (j) A Reconciliation, including Appropriate Explanations, of the Computation of Net Capitalunder Rule 150-1 and the Computation for Determination of the Reserve Requirementsunder Rule 150-3 included in item

15

(k) A Reconciliation Between the Audited and Unaudited Statements of Financial Conditionwith Respect to Methods of Consolidation not applicable).

X 1 An Oath or Affirmation.X I (m) A Report Describing the Broker-Dealer's Compliance with the Exemption Provisions

of Section (k) of SEC Rule 15c3-3 (the "Exemption Report") and Report of IndependentRegistered Public Accounting Firm Thereon filed separately).

**For conditions of confidential treatment of certain portions of this filing, see section 240.17a-5(e)(3),

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Deloitte,Deloitte & Touche LLP30 Rockefeller PlazaNew York, NY 10112-0015

Tel: +1212 489 1600Fax: +1212 489 1687

www.deloitte.com

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Member of IEX Services LLC:

We have audited the accompanying statement of financial condition of IEX Services LLC (the"Company") as of December 31, 2016, and the related statements of income, cash flows, changes inmember's equity, and changes in liabilities subordinated to claims of general creditors for the year thenended that you are filing pursuant to Rule 17a-5 under the Securities Exchange Act of 1934. Thesefinancial statements are the responsibility of the Company's management. Our responsibility is to expressan opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting OversightBoard (United States). Those standards require that we plan and perform the audit to obtain reasonableassurance about whether the financial statements are free of material misstatement. The Company is notrequired to have, nor were we engaged to perform, an audit of its internal control over financial reporting.Our audit included consideration of internal control over financial reporting as a basis for designing auditprocedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion onthe effectiveness of the Company's internal control over financial reporting. Accordingly, we express nosuch opinion. An audit also includes examining, on a test basis, evidence supporting the amounts anddisclosures in the financial statements, assessing the accounting principles used and significant estimatesmade by management, as well as evaluating the overall financial statement presentation. We believe thatour audit provides a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material respects, the financial position ofIEX Services LLC as of December 31, 2016, and the results of its operations and its cash flows for theyear then ended December 31, 2016 in conformity with accounting principles generally accepted in theUnited States of America.

The supplemental schedules g, h, and i listed in the accompanying table of contents have been subjectedto audit procedures performed in conjunction with the audit of the Company's financial statements. Thesupplemental schedules are the responsibility of the Company's management. Our audit proceduresincluded determining whether the supplemental schedules reconcile to the financial statements or theunderlying accounting and other records, as applicable, and performing procedures to test thecompleteness and accuracy of the information presented in the supplemental schedules. In forming ouropinion on the supplemental schedules, we evaluated whether the supplemental schedules, including theirform and content, are presented in compliance with Rule 17a-5 under the Securities Exchange Act of1934. In our opinion, such schedules are fairly stated, in all material respects, in relation to the financialstatements as a whole.

bx&s47 $ '~wd~ L..PFebruary 28, 2017

Member ofDeloitte Touche Tohmatsu Limited

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1EX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Financial ConditionDecember 31, 2016

As s ets

Cash and cash equivalents 30,854,302

Receivables from subscribers 224,149

Receivables from clearing firm 501,940

Receivables fromexchanges 516,717

Due FrbmaQiliate 2,674,850

Deferred tax asset 969,687

Prepaid expenses 43,114TOTAL

j

A.j

~SSETS $ 35,814,759~'f f7li~)'7SFoA~t}•Y.l 1.,, run ~VYK3F. any y ~~ ~ i j '`

ti. w t y33

•... yy

Liabilities and lWinber's Equity1 ~• 15T}!.

Liabilities: S(r Si'1 n(~

Payable to parent $ 217,169

Accrued exlienses and other liabilities"'-~00

3,423,896

TOTA L LIABILITIES j

3,641,065

oi-

Member's equity:

Members equity m

TOTAL LIABILITIES AND MEMBER'S EQUITY

See notes to financial statements

32,173,694

$ 35,814,759

Confidential 2

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IEX Services LLC(A Wholly-Owned Subsidiary of 1EX Group, Inc.)

Statement of IncomeFor the Year Ended December 31, 2016

Revenues:

Matched fees

pouted fees

Regulatory transaction fees

Related party expense sharing

Other

Total revenues

Cost of revenues:

Routing fees

Section 31 fees

Clearing fees

Other

`Total cost of revenuesTotal revenues, less cost of revenues

Operating expenses:

Technology and communicationsEmployee compensation and benefits

Software licensing fee

Interest on subordinated debt

Professional

feesRegulatory fees

Rent and office

Other

Total operating expensesIncome before income taxes

Provision for income taxesNet income

See notes to financial statements

32,238;139

17,013,0385,259,944

11,400,971

2,507,422

68,419,514

24,886,133

6,267,468

3;340,421

437,029

34,931,051

33,488,463

7,851,0895,634,082

856,349430,514

545,074

365,421

319,558

621,729

16,623,8.16

I6,864,647

7,436,7399,427,908

Confidential 3

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Cash FlowsFor the Year Ended December 31, 2016

Cash flows from operating activities:

Net income; $ 9,427,908

Adjustments to reconcile net income to net cash provided by operating activities

-

Interest accrued on subordinated borrowings 430,14

Incomc vision thY`' j .jfiar j _ ~:_ .<~ _,..v 7,436,739

Deferred tax asset~~~(((

(531,508)cc

Chan es in o crating assets and l_iabilitio ; 10 ~ , n41 A

Receivables fromsubscribers 10,140,952

Receivables fromclewin fimt 1,473.

Receivables fromexchanges 693,629¢

Due From afliliate T. `° (2,674;850)

Other receivables 2,722

Prepaid expenses (1,7 )

Payable to parent (2,02,494)

Accrued expenses and other liabilities ' `'"',`; (481,307)Net cash proNided by operating activities 21,799,068

yy~~yy

Cash flow froin financing activities:Repayment of liabilities subordinated to claims of creditors t; 1 (14,925,069-)

Net cash used by financing activities (14,9252069)

Net increase in cash 61873,999

Cash a beginning of year 24,010,3.03Cash at end of year S 30,884,302

Non-cash financing activities:Income tax payable (See Notes 5 and 6} $ 7;436,739

See notes to financial statements

Confidential 4

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member'sEquity

Balance at December 31, 2015 $ 14,797,911

Non-cash capital contributions (Sec Note 5) 7,947,815

Net inconx 9,427,908.

Balance at December 31, 2016 $ 32,173,694

See notes to financial statements

Confidential

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IEX Services LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Statement of Changes in Liabilities Subordinated to Claims of CreditorsFor the Year Ended December 31, 2016

Liabilities subordinated to claims of creditors at December 31, 2015 $ 14,494,555

Additional accrued interest

Repayment of liabilities subordinated to claims of creditorsLiabilities subordinated to claims of creditors at December 31, 2016

See notes to financial statements

430,514

(14,92,069)

Confidential

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IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Financial StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Services LLC (the "Company") is a broker-dealer registered with the Securities and ExchangeCommission (the "SEC") and is a member of various exchanges and the Financial IndustryRegulatory Authority ("FINRA"). The Company is a Delaware limited liability company and awholly-owned subsidiary of IEX Group, Inc. ("Parent").

During the year, the Company operated an Alternative Trading System C"ATS") which providedexecution services for its broker-dealer subscribers. The Company also offered order routingservices to other venues. The ATS ceased operations on September 1, 2016 with the advent of itsaffiliate, Investors' Exchange LLC ("Exchange"). The Company serves solely as the routingfacility for the Exchange as of September 2, 2016.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management tomake estimates and assumptions that affect the reported amounts of assets and liabilities anddisclosure of contingent assets and liabilities at the date of the financial statements and the reportedamounts of revenue and expenses during the reporting period. Actual results could differmaterially from those estimates.

Revenue Recognition

Through September 1, 2016, the Company's primary business was matching equity shares on itstrading system for its subscribers. Matched fees included shares matched on its trading systemwhereby shares whose price was $1.00/share or greater were assessed a charge of 9 mils per share($0.09 per 100 shares). For shares whose price was less than $1.00 a fee of 0.30% of the totalnotional value of the trade (shares x price) was assessed. Routing fees include fees on ordersrouted to other venues on a cost-plus-1-mil basis ($0.01 per 100 shares). The Company offeredseveral pricing promotions during the year to eligible subscribers. Fees were recorded on a tradedate basis as securities transactions occurred.

Regulatory transaction fees represent Section 31 fees paid to the SEC pursuant to Section 31 ofthe Securities Exchange Act of 1934 by the exchanges. The Company recorded Regulatorytransaction fees as revenues with a corresponding cost of revenue for Section 31 fees remitted tothe Company's clearing firm.

On August 19, 2016, the Company entered into anew Tri-Party Expense Sharing Agreement ("Tri-Party ESA") with the Parent and Exchange to properly allocate the shared expenses incurredamongst the parties (See Note 5). In addition. to the monthly fee for use of the routing facilitydescribed in the next paragraph, the Company is also reimbursed by the Exchange for costs

Confidential 7

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incurred on behalf of the Exchange. These reimbursements are presented on a gross basis inRelated party expense sharing with the corresponding expenses presented in the Cost of Revenuesand Operating Expenses on the Company's Statement of Income, as the Company is consideredthe primary obligor.

Other revenues consisted primarily of revenue from trade reporting and other revenues receivedfrom exchanges. Beginning September 2, 2016, the Company also earned $100,000 per monthserving as the routing facility for the Exchange.

All fees are recorded on a trade date basis as securities transactions occur.

Cost of Revenues

The Company incurs routing, Section 31, clearing and other fees directly related to its revenue.

Routing fees and Section 31 fees are described in Revenue Recognition and clearing fees consistof costs to process, clear and settle transactions.

Income Taxes

The Company is included in the income tax returns filed by the Parent, which files as a C-corporation. Income taxes are calculated as if the Company filed on a separate return basis and asa C-corporation. The Company records income tax expense (benefit) using the asset and liabilitymethod. Under this method, deferred tax assets and liabilities are determined based upon thetemporary differences between the financial statement and income tax bases of assets and liabilitiesusing currently enacted tax rates in effect for the year in which the differences are expected toreverse.

The Company recognizes deferred tax assets to the extent that it believes these assets are morelikely than not to be realized. In making such a determination, the Company considers all availablepositive and negative evidence, including future reversals of existing taxable temporarydifferences, projected future taxable income, tax-planning strategies, and results of recentoperations. A valuation allowance is established to reduce the deferred tax assets to the amountthat is more likely than not to be realized.

The Company follows the provisions of uncertain tax positions as addressed in FinancialAccounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740, IncomeTaxes, The Company did not record a liability for unrecognized tax benefits. The Company hasno tax positions at December 31, 2016 for which the ultimate deductibility is highly certain but forwhich there is uncertainty about the timing of such deductibility. The Company recognizes interestand penalties accrued related to unrecognized tax benefits in interest expense and penalties inoperating expenses. No such interest or penalties were recognized for the year ended December31, 2016, and the Company had no accruals for interest and penalties at December 31, 2016.

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liabilityin an orderly transaction between market participants at the measurement date, or an exitprice. The amounts presented for financial assets and liabilities on the Statement of FinancialCondition are carried at fair value or at amounts that, because of their short-term nature, theCompany believes approximate current fair value.

Confidential 8

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The fair value of the Company's financial instruments is measured based on a three-levelhierarchy:

• Level 1— quoted prices for identical assets or liabilities in active markets.

• Level 2 — observable inputs, other than quoted prices included in Level 1, for the asset orliability, or prices for similar assets and liabilities.

• Level 3 — unobservable inputs supported by little or no market activity and that aresignificant to the fair value of the assets or liabilities.

All financial assets and liabilities are considered Level 2 under the fair value hierarchy, except forcash and cash equivalents which are considered Level 1.

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-04, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, Revenue Recognition. The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is that an entity should recognize revenue to depict the transfer of promised goods orservices to customers in an amount that reflects the consideration it expects to receive in exchangefor those goods or services. The standard also requires more detailed disclosures. The standardprovides alternative methods of initial adoption and is effective for annual reporting periodsbeginning after December 15, 2017, and interim periods within annual periods beginning afterDecember 15, 2018. The Company is evaluating this guidance, but does not expect it to materiallyimpact the financial statements of the Company.

In June 2014, the FASB issued ASU,2014-12, Compensation — Stock Compensation (Topic 718),which requires that a performance target that affects vesting and that could be achieved after therequisite service period be treated as a performance condition. ASU 2014-12 was effective forannual reporting periods and interim periods beginning after December 15, 2015. The adoptiondid not have an impact on the financial statements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic606): Principal versus Agent Considerations. The purpose of ASU 2016-08 is to clarify theimplementation of guidance on principal versus agent considerations. The amendments in ASUNo. 2016-08 are effective for annual reporting periods beginning after December 15, 2017, andinterim periods within annual periods beginning after December 15, 2018. The Company iscurrently assessing the impact of ASU 2016-08 on its financial statements and related disclosures.

Confidential

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In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic718), Improvements to Employee Share-Based Payment Accounting. Under ASU 2016-09,companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital ("APIC"). Instead, they will record all excess tax benefits and tax deficiencies as incometax expense or benefit in the income statement, and the APIC pools will be eliminated. In addition,ASU 2016-09 eliminates the requirement that excess tax benefits be realized before companies canrecognize them. ASU 2016-09 also requires companies to present excess tax benefits as anoperating activity on the statement of cash flows rather than as a financing activity. Furthermore,ASU 2016-09 will increase the amount an employer can withhold to cover income taxes on awardsand still qualify for the exception to liability classification for shares used to satisfy the employer'sstatutory income tax withholding obligation. An employer with a statutory income tax withholdingobligation will now be allowed to withhold shares with a fair value up to the amount of taxes owedusing the maximum statutory tax rate in the employee's applicable jurisdiction(s). ASU 2016-09requires a company to classify the cash paid to a tax authority when shares are withheld to satisfyits statutory income tax withholding obligation as a financing activity on the statement of cashflows. Under current U.S. GAAP, it was not specified how these cash flows should be classified.In addition, companies will now have to elect whether to account for forfeitures on share-basedpayments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number ofawards expected to be forfeited and adjusting the estimate when it is likely to change as currentlyrequired. The amendments of this ASU are effective for annual periods beginning after December15, 2017, and interim periods within annual periods beginning after December 15, 2018. Earlyadoption is permitted but all of the guidance must be adopted in the same period. The Company iscurrently assessing the impact that ASU 2016-09 will have on its financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows - Classification ofCertain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues withthe objective of reducing the existing diversity in practice in how certain cash receipts and cashpayments are presented and classified in the statement of cash flows. The standard is effective forfiscal years beginning after December 15, 2018, and interim periods within fiscal years beginningafter December 15, 2019. Early adoption is permitted, including adoption in an interim period. TheCompany is currently in the process of evaluating the impact of this new pronouncement on itsstatements of cash flows.

3. Concentration of Credit Risk and Major Subscribers

Cash and Cash Equivalents

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution in excess of FDIClimits of approximately $1.8 million.

Cash equivalents of approximately $28.9 million consist of money market funds.

Confidential 10

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4. Receivables From Subscribers, Clearing Firm and Exchanges

As of December 31, 2016, the Company had amounts receivable from subscribers, clearing firmand exchanges as follows (in thousands):

SubscribeI'sClearing FinnExchanges

Receivables$ 224

502

517

$ 1,243

Receivables from subscribers consist of all trading fees (matched, routed and regulatorytransaction fees) billed to the Company's subscribers.

Receivables from clearing finn consist of a $500,000 security deposit plus interest, accumulatedat the interest rate as defined in the clearing agreement.

Receivables from exchanges consist of rebates from exchanges.

5. Related Party Transactions

Subordinated Loan Agreement

The Company entered into a Subordinated Loan Agreement ("SLA") on September 13, 2013 withthe Parent in order to fund its operations. The SLA was for $13,000,000 with a 5% per annuminterest charge with a three-year tenn, which matured on September 12, 2016. The SubordinatedLoan and related interest accrual were allowable in computing net capital under the SEC's UniformNet Capital Rule and approved by FINRA.

For the year ended December 31, 2016, the Company recorded approximately $431,000 in interestexpense associated with the terms and conditions of the SLA.

During 2016 the Company completely repaid the principal plus accrued interest of approximately$14.9 million to the Parent.

Software License and Expense Sharing Agreement

The Company entered into a Software License and Expense Sharing Agreement ("ESA") with theParent on October 1, 2013 to reimburse the Parent on a monthly basis for expenses incurred on theCompany's behalf. Included in the ESA is a quarterly Software License Fee for the use of thetechnology which operates its ATS and is the property of the Parent. This Software License Feewas $325,000 per quarter.

Confidential 11

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For the year ended December 31, 2016, the Company's allocation of expenses, according to theterms and conditions of the ESA, are shown below (in thousands):

Technology and communications$

5,841Employee compensation and benefits 5,634Software licensing fee 856Professional fees 307Rent and office 320Regulatory fees 26Tax Provision 20Other 606

$

13,610

A new Tri-Party ESA with the Exchange and the Parent went into effect August 19, 2016 and itreplaced the prior ESA with Parent. The Parent will reimburse the Company for all expensesrelated to the operation and maintenance of the Smart Order Router, including without limitation,personnel expenses, licensing and registration fees, all costs of revenues, all assessments imposedby regulators, banking fees, legal fees, taxes, rent for independent commercial space leases, allexpenses to outside vendors, infiastiucture and data center maintenance and software support andmaintenance expenses (collectively, "SOR Expenses"). At December 31, 2016, amounts due tothe Parent relating to the Tri-Party ESA were approximately $217,000, payable within 30 days.

As part of the new Tri-Party ESA, the Company agreed to be reimbursed on a monthly basis forSOR expenses incurred on behalf of the Exchange. At December 31, 2016, amounts due from theExchange relating to the Tri-Party ESA were approximately $2.7 million, receivable within 30days. Included in the amount due from the Exchange is a monthly Software License Fee for routingservices of $100,000 per month.

For the year ended December 31, 2016, the Company's allocation of expenses to the Exchange,according to the tenns and conditions of the ESA, are shown below (in thousands):

Routing fees $ 8,589Technology and communications 1,240SEC Section 31 fees 1,031Clearing fees 489Regulatory fees 42Other 10

_..$ 11.401

Capital Contributions

The provision for income taxes under the separate return method and related payable to the Parenthas been recorded as a non-cash capital contribution since no payment will be made in accordancewith the Tri-Party ESA. During 2016, the Parent made approximately $8.0 million of such non-cash capital contributions which included an increase to the deferred tax asset of approximately$532,000.

Confidential 12

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6. Income Taxes

At December 31, 2016, the Company had a deferred tax asset of approximately $1.0 millionrelating to stock based compensation.

The provision for income taxes of approximately $7.4 million consists of current provision offederal income taxes of approximately $5.1 million and $2.3 million for state and local incometaxes, which is net of a deferred benefit of approximately $532,000 for the year ended December31, 2016.

The federal income tax expense under the separate return method and payable to the Parent hasbeen recorded as a capital contribution since no payment will be made in accordance with the Tri-Party ESA.

The jurisdictions open for audit are Federal, New York State and New York City from 2013 todate.

Income tax expense (benefit) differs from the tax that would result from applying federal statutorytax rates primarily due to unfavorable permanent book-to-tax differences and the valuationallowance related to deferred tax assets.

7. Share-Based Compensation

The Parent maintains the 2012 Equity Incentive Plan (the "Plan"), which was approved by theParent's Board of Directors on June 27, 2012 and the Parent's Stockholders on June 29, 2012. Theplan permits the grant of incentive stock options, non-statutory stock options, stock appreciationrights, restricted stock awards, restricted stock unit awards and other stock awards to employees,directors and consultants. The Parent issues shares from authorized but unissued or reacquiredCommon Stock. The fair value of RSUs and options is based on the most recent valuationcompleted by the Parent on the date of grant and is recorded as compensation expense.

The Parent allocates stock compensation expense in addition to salary and benefit expenses to theCompany through the ESA and the Tri-Party ESA based upon services provided by the Parent'semployees. During the year ended December 31, 2016, the Company incurred approximately $1.4million in stock compensation expense which is recorded in Employee compensation and benefitson the Statement of Income.

8. Net Capital

The Company is subject to the SEC Uniform Net Capital Rule 156-1, which requires themaintenance of minimum net capital at the greater of 6 2/3% of aggregate indebtedness orminimum net capital of $5,000 at December 31, 2016.

On September 20, 2016, the Company changed its minimum net capital requirement under SECRule 15c3-1 from $100,000 to $5,000 effective October 1., 2016. Due to its cessation of operatingas an ATS and relinquishing its rights to act as an agent in a Private Placement, the Company hasplaced itself under the classification of "Other Broker Dealer".

Confidential 13

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At December 31, 2016, the Company had net capital of approximately $27.2 million, whichexceeded the minimum requirement of approximately $241,000 by $27.0 million. The Company'sratio of aggregate indebtedness to net capital was 0.13 to 1.

9. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, includingarbitrations, class actions and other litigation, arising in connection with its activities as a broker-dealer. The Company may also be involved, from time to time, in other reviews, investigations,and proceedings (formal and informal) by governmental and self-regulatory agencies regardingthe Company's business. Where available information indicates that it is probable a liability hadbeen incurred at the date of financial statements and the Company can reasonably estimate theamount of that loss, the Company accrues the estimated loss by a charge to income. Managementbelieves that the resolution of any unknown matter will not result in any materially adverse effecton the Company's financial position, results of operations or cash flows.

10. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements wereavailable to be issued, and have determined that there are no subsequent events requiringdisclosures or adjustments to the financial statements other than discussed below.

The Parent granted approximately 130,000 restricted stock units during January 2017 which vestover 4 years. The Company will be allocated stock compensation expense through the Tri-PartyESA based on services provided by the Parent's employees.

Confidential 14

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Schedule G

IEX Services LLC(A Wholly-Owned Subsidiary of 1EX Group, Inc.)

Computation of Net Capital for Brokers and Dealers Pursuant to Rule 156-1 Under the SecuritiesExchange Act of 1934

December 31, 2016

Net Capital

Total member's equity

Subordinated liabilities

Total capital and allowable subordinated liabilities

Deductibles/charge-s:

Nonallowable assets:

Receivables from subscnbers

Receivables fromexclianges

Due from affiliate

Deferred tax asset

Prepaid expenses

Net Capital before haircuts on securities positions

Haircuts on securities positions:

Other securities

Net Capital

Minimum net capital required (6-2/3% of aggregate indebteness)

F,A;css net capital

Aggregate indebtedness

Items included in statement of financial condition:

Payable to parent

Accrued and other liabilities

Total aggregate indebtedness

Ratio of aggregate indebtedness to net capital

As reportedin (unaudited)

FOCUS PartIIA report Audited

filed on amount as of

January26, Adjustments December 3l,

2017 (1) 2016

31,048,180 $ 1,125,514 $ 32,173,694

$ 31,048,180 $ 1,125,514 $ 32,173,694

224,149 - 224,149

433,869 82,848 516,717

2,674,850 - 2,674,850

959,026 10,661 969,687

43,114 - 43,114

4,335,008 93,509 .4,428,517

26,713,172 1,032,005 27,745,177

577,662 - 577,662

S 26,135,510 $ 1,032,005 $ 27,167,515

311,538 (68,800) 242,738

$ 25,823,972$

1,100,805 $ 26,924,777

282,880 (65,711)

4,390,190 (966,294)

$ 4,673,070 $ (1,032,005)

0.18 to l

217,1699 All 40V.

3.641, O

0.13 to 1

(1) Adjustments are as follows:

Member's equity adjustment of$1,125,514 related mainly to Q4 non-cash capital contribution for income tax provisions.

Receivables from exchanges adjustment for $82,848 for NYSETRF revenue.

Deferred tax asset adjustment of $10,661 related to adjustments to Q4 taxprovisions.

Payable to parent adjustment of ($65,711) related to adjustments related to year-end bonuses.

Accrued and other liabilities adjustment of ($966,294) related mainly to Q4 taxprovisions and capital contributions.

Confidential 15

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Schedule H & I

IEX Services LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Computation for Determination of Reserve Requirements for Brokers and Dealers Pursuant to Rule

156-3 under the Securities Exchange Act of 1934 and Information Relating to Possession or Control

Requirements for Brokers and Dealers Pursuant to Rule 15c3-3 under the Securities Exchange Act

of 1934

December 31, 2016

The Company is exempt from Rule 150-3 pursuant to the provisions of Section (k)(2)(ii) of therule.

Confidential 16

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Addendum D-3Unaudited financial statements of IEX Ventures LLC

for the fiscal year ending 12/31/2016

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IEX VENTURES LLC

(A Wholly-Owned Subsidiary of IEX Group, Inc.)

FINANCIAL STATEMENTSAS OF AND FOR THE YEAR ENDED DECEMBER 31, 2016

UNAUDITED

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1EX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Table of Contents

Unaudited Statement of Financial Condition

Unaudited Statement of Income

Unaudited Statement of Changes in Member's Equity

Notes to Financial Statements

Page

3

4

5

7-11

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Financial ConditionDecember 31, 2016

Assets

Cash 37,405

Investment in TradeWind 6,800,000

TOTAL ASSETS $ 6,837,405

Liabilities and Member's Equity

Liabilities:

Accrued and other liabilities $ -

TOTAL LIABILITIES -

Member's equity:

Member's equity 6,837,405

.TOTAL LIABILITIES AND MEMBER'S EQUITY $ 6,837,405

See notes to financial statements

Confidential 3

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of IncomeFor the Year Ended December 31, 2016

Revenues:

Other $ 39,600

Total revenues 39,600

Operating expenses:

Software licensing fee 100

Professional fees 3,000

Other 96

Total operating expenses 3,196

Income before other 36,404

Gain on investment 4,800,000

Net income 4,836,404

See notes to financial statements

Confidential 4

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Unaudited Statement of Changes in Member's EquityFor the Year Ended December 31, 2016

Total Member's

Equity

Balance at January. 1, 2016 $ -

Capital contributions 2,001,001

Net income 4,836,404

Balance at December 31, 2016 $ 6,837,405

See notes to financial statements

Confidential 5

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

1. Organization and Nature of Business

IEX Ventures LLC (the "Company") . is an investment company that seeks to leverage the

technology developed by the IEX organization. The Company is a Delaware limited liability

company and a wholly-owned subsidiary of IEX Group, Inc. ("Parent"). The Company was

formed in June 2015.

2. Significant Accounting Policies

Basis of Presentation

The financial statements include all accounts of the Company and are prepared in accordance withaccounting principles generally accepted in the United States ("U.S. GAAP").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to

make estimates and assumptions that affect the reported amounts of assets and liabilities and

disclosure of contingent assets and liabilities at the date of the financial statements and the reported

amounts of revenue and expenses during the reporting period. Actual results could differ

materially from those estimates.

Fair Value of Financial Instruments

A fair value measurement is based on the assumptions that market participants would use in pricingan asset or liability. The hierarchy for inputs used in measuring fair value is as follows:

1. Level 1 Inputs—quoted prices in active markets for identical assets or liabilities2. Level 2 Inputs—observable inputs, other than quoted prices in active markets for

identical assets and liabilities3. Level 3 Inputs—unobservable inputs

In certain cases, the inputs used to measure fair value may fall into different levels of the fair valuehierarchy. In such cases, the level within which the fair value measurement is categorized is basedon the lowest level input that is significant to the fair value measurement.

Financial instruments are valued at quoted market prices, if available. Certain financialinstruments have bid and ask prices that can be observed in the marketplace. For financialinstruments whose inputs are based on bid-ask prices, the financial instrument is valued at thepoint within the bid-ask range that meets our best estimate of fair value. The Company uses pricesand inputs that are current as of the measurement date. For financial instruments that do not havereadily determinable fair values using quoted market prices, the determination of fair value is basedupon consideration of available information, including types of financial instruments, currentfinancial information, restrictions on dispositions, fair values of underlying financial instrumentsand quotations for similar instruments.

The valuation of financial instruments may include the use of valuation models and othertechniques. Adjustments to valuations derived from valuation models may be made when, in

Confidential 7

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

management's judgment, features of the financial instrument such as its complexity, the market inwhich the financial instrument is traded and risk uncertainties about market conditions require thatan adjustment be made to the value derived from the models. Adjustments from the price derivedfrom a valuation model reflect management's judgment that other participants in the market forthe financial instrument being measured at fair value would also consider in valuing that samefinancial instrument. To the extent that valuation is based on models or inputs that are lessobservable or unobservable in the market, the determination of fair value requires more judgment.

The availability of observable inputs can vary and is affected by a wide variety of factors,including, for example, the type of financial instrument and market conditions. As theobservability of prices and inputs may change for a financial instrument from period to period, thiscondition may cause a transfer of an instrument among the fair value hierarchy levels. Transfersamong the levels are recognized at the beginning of each period. The degree of judgment exercisedin determining fair value is greatest for instruments categorized in Level 3. The valuation processinvolved for Level 3 measurements is completed at least annually. The Company will generallyemploy multiple valuation methodologies when determining the fair value of investmentscategorized as Level 3, such as market comparable analysis and discounted cash flow analysis.The market comparable analysis considers key financial inputs, recent public and privatetransactions and other available measures. The discounted cash flow analysis incorporatessignificant assumptions and judgments and the estimates of key inputs used in this methodologyinclude the discount rate for the investment and assumed inputs used to calculate terminal values,such as price/earnings multiples. Upon completion of the valuations conducted using thesemethodologies, a weighting is ascribed to each method and the ultimate fair value recorded for aparticular investment will generally be within a range suggested by the methodologies. Whendetermining the weighting ascribed to each valuation methodology, the Company considers,among other factors, the availability of direct market comparables, the applicability of a discountedcash flow analysis and the expected holding period.

Fair Value Option

The Company is accounting for its investment in TradeWind Markets Inc. ("TradeWind") as anequity method investment and has elected the fair value option and records this investment at fairvalue with changes in fair value recorded in the Consolidated Statement of Income.

The primary reason for electing the fair value option is to reflect economic events in earnings ona timely basis.

Confidential 8

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

Recent Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue fromContracts with Customers (Topic 606), which supersedes the revenue recognition guidance in ASC605, "Revenue Recognition". The new revenue recognition standard sets forth a five-step revenuerecognition model to determine when and how revenue is recognized. The core principle of theguidance is an entity should recognize revenue to depict the transfer of promised goods or servicesto customers in an amount that reflects the consideration it expects to receive in exchange for thosegoods or services. The standard also requires more detailed disclosures. The standard providesalternative methods of initial adoption and is effective for annual reporting periods beginning afterDecember 15, 2018, including interim periods within that reporting period, for non-public entities.The Company is evaluating this guidance, but does not expect it to materially impact the financialstatements of the Company.

In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity'sAbility to Continue as a Going Concern. ASU 2014-15 provides guidance on management'sresponsibility in evaluating whether there is substantial doubt about a company's ability tocontinue as a going concern and about related footnote disclosures. For each reporting period,management will be required to evaluate whether there are conditions or events that raisesubstantial doubt about a company's ability to continue as a going concern within one year fromthe date the financial statements are issued. The amendments in ASU 2014-15 were effective forannual reporting periods ending after December 15, 2016, and for annual and interim periodsthereafter. The adoption did not have an impact on the financial statements of the Company.

3. Concentration of Credit Risk

Cash

The Company maintains cash balances at a financial institution. Accounts are insured by theFederal Deposit Insurance Corporation ("FDIC") up to $250,000 in the aggregate for each bank.At December 31, 2016, the Company had deposits at a financial institution within FDIC limits.

4. Related Party Transactions

Expense Sharing

The Company earned $39,600 as a result of compensation expense sharing with its investmentcompany, TradeWind.

TradeWind

In April 2016, the Company contributed a license and cash to TradeWind valuded at $6,800,000.

The value of the Company's investment in TradeWind as of June 14, 2016 was determined basedprimarily on the market approach but also on estimated cash flows based on entity specific criteria

Confidential 9

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IEX Ventures LLC(A Wholly-Owned Subsidiary of IEX Group, Inc.)

Notes to Unaudited Financial StatementsDecember 31, 2016

and other qualitative and quantitative factors. The value at which the Company's investments are

carried on its books are adjusted to estimated fair value at the end of each period. The fair value

of TradeWind at December 31, 2016 was determined to approximate the value of the investment

at June 14, 2016 given the lack of significant subsequent events.

5. Commitments, Contingencies and Guarantees

In the normal course of business, the Company may be subject to various legal actions, including

arbitrations, class actions and other litigation, arising in connection with its activities as a securities

exchange. The Company may also be involved, from time to time, in other reviews, investigations,

and proceedings (formal and informal) by governmental and self-regulatory agencies regarding

the Company's business. Where available information indicates that it is probable a liability had

been incurred at the date of financial statements and the Company can reasonably estimate the

amount of that loss, the Company accrues the estimated loss by a charge to income. Management

believes that the resolution of any unknown matter will not result in any materially adverse effect

on the Company's financial position, results of operations or cash flows.

6. Subsequent Events

The Company has evaluated subsequent events through the date the financial statements were

available to be issued, and have determined that there are no subsequent events requiring

disclosures or adjustments to the financial statements.

Confidential 10